{"id":"https://openalex.org/W4415594906","doi":"https://doi.org/10.1371/journal.pone.0334894","title":"Evaluating phone call follow-ups in Sub-Saharan Africa: A systematic review and meta-analysis","display_name":"Evaluating phone call follow-ups in Sub-Saharan Africa: A systematic review and meta-analysis","publication_year":2025,"publication_date":"2025-10-27","ids":{"openalex":"https://openalex.org/W4415594906","doi":"https://doi.org/10.1371/journal.pone.0334894","pmid":"https://pubmed.ncbi.nlm.nih.gov/41144439","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/12558458"},"language":"en","primary_location":{"id":"doi:10.1371/journal.pone.0334894","doi":"https://doi.org/10.1371/journal.pone.0334894","is_oa":true,"landing_page_url":"https://doi.org/10.1371/journal.pone.0334894","pdf_url":"https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0334894&type=printable","source":{"id":"https://openalex.org/S202381698","display_name":"PLoS ONE","issn_l":"1932-6203","issn":["1932-6203"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","erih-plus","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315706","host_organization_name":"Public Library of Science","host_organization_lineage":["https://openalex.org/P4310315706"],"host_organization_lineage_names":["Public Library of Science"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"PLOS One","raw_type":"journal-article"},"volume":null,"type":"review","indexed_in":["crossref","datacite","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0334894&type=printable","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113181820","display_name":"Adesola Zadiat Musa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Adesola Zadiat Musa","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040712791","display_name":"Folahanmi Tomiwa Akinsolu","orcid":"https://orcid.org/0000-0002-6782-9820","observed_orcids":["https://orcid.org/0000-0002-6782-9820"]},"institutions":[{"id":"https://openalex.org/I114027177","display_name":"University of North Carolina at Chapel Hill","ror":"https://ror.org/0130frc33","country_code":"US","type":"education","lineage":["https://openalex.org/I114027177"]},{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]}],"countries":["NG","US"],"is_corresponding":true,"raw_author_name":"Folahanmi Tomiwa Akinsolu","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America"],"raw_orcid":"https://orcid.org/0000-0002-6782-9820","affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]},{"raw_affiliation_string":"Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America","institution_ids":["https://openalex.org/I114027177"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037188693","display_name":"Abideen Oluwarotimi Salako","orcid":"https://orcid.org/0000-0002-3018-3712","observed_orcids":["https://orcid.org/0000-0002-3018-3712"]},"institutions":[{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Abideen Oluwarotimi Salako","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082555758","display_name":"Olunike Rebecca Abodunrin","orcid":"https://orcid.org/0009-0000-5258-1220","observed_orcids":["https://orcid.org/0009-0000-5258-1220"]},"institutions":[{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]},{"id":"https://openalex.org/I83519826","display_name":"Nanjing Medical University","ror":"https://ror.org/059gcgy73","country_code":"CN","type":"education","lineage":["https://openalex.org/I83519826"]}],"countries":["CN","NG"],"is_corresponding":false,"raw_author_name":"Olunike Rebecca Abodunrin","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Epidemiology, Centre for Global Health, School of Public Health, Nanjing Medical University, China","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Epidemiology, Centre for Global Health, School of Public Health, Nanjing Medical University, China","institution_ids":["https://openalex.org/I83519826"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044244646","display_name":"Oluwabukola Mary Ola","orcid":"https://orcid.org/0009-0005-8766-2852","observed_orcids":["https://orcid.org/0009-0005-8766-2852"]},"institutions":[{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Oluwabukola Mary Ola","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5038583454","display_name":"Oliver Ezechi","orcid":"https://orcid.org/0000-0003-0688-3898","observed_orcids":["https://orcid.org/0000-0003-0688-3898"]},"institutions":[{"id":"https://openalex.org/I49433721","display_name":"Nigerian Institute of Medical Research","ror":"https://ror.org/03kk9k137","country_code":"NG","type":"healthcare","lineage":["https://openalex.org/I49433721"]},{"id":"https://openalex.org/I70593384","display_name":"Lead City University","ror":"https://ror.org/043z5qa52","country_code":"NG","type":"education","lineage":["https://openalex.org/I70593384"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Oliver Chukwujekwu Ezechi","raw_affiliation_strings":["Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Reproduction and Population Health Studies, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Clinical Sciences Department, Nigerian Institute Medical Research, Lagos, Nigeria","institution_ids":["https://openalex.org/I49433721"]},{"raw_affiliation_string":"Department of Public Health, Faculty of Basic Medical and Health Sciences, Lead City University, Ibadan, Nigeria","institution_ids":["https://openalex.org/I70593384"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5040712791"],"corresponding_institution_ids":["https://openalex.org/I114027177","https://openalex.org/I49433721","https://openalex.org/I70593384"],"apc_list":{"value":2382,"currency":"USD","value_usd":2382},"apc_paid":{"value":2382,"currency":"USD","value_usd":2382},"fwci":0.163,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.32973621,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":92,"max":95},"biblio":{"volume":"20","issue":"10","first_page":"e0334894","last_page":"e0334894"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11446","display_name":"Mobile Health and mHealth Applications","score":0.5479000210762024,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11446","display_name":"Mobile Health and mHealth Applications","score":0.5479000210762024,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11539","display_name":"Survey Methodology and Nonresponse","score":0.3668999969959259,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10912","display_name":"Telemedicine and Telehealth Implementation","score":0.014600000344216824,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/participant-retention","display_name":"participant retention","score":0.9549999833106995},{"id":"https://openalex.org/keywords/loss-to-follow-up","display_name":"loss to follow-up","score":0.9810000061988831},{"id":"https://openalex.org/keywords/community-health-intervention","display_name":"community health intervention","score":0.6800000071525574},{"id":"https://openalex.org/keywords/resource-limited-settings","display_name":"resource-limited settings","score":0.7829999923706055},{"id":"https://openalex.org/keywords/sub-saharan-africa","display_name":"sub-Saharan Africa","score":0.8309999704360962},{"id":"https://openalex.org/keywords/barriers-to-follow-up","display_name":"barriers to follow-up","score":0.7839999794960022},{"id":"https://openalex.org/keywords/text-messaging","display_name":"text messaging","score":0.6399999856948853},{"id":"https://openalex.org/keywords/whatsapp","display_name":"WhatsApp","score":0.9359999895095825}],"concepts":[{"id":"https://openalex.org/C2778707766","wikidata":"https://www.wikidata.org/wiki/Q202064","display_name":"Phone","level":2,"score":0.8162999749183655},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6292999982833862},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5871000289916992},{"id":"https://openalex.org/C160735492","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Health care","level":2,"score":0.5562999844551086},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.38440001010894775},{"id":"https://openalex.org/C3018457447","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Healthcare delivery","level":3,"score":0.3571999967098236},{"id":"https://openalex.org/C2994270382","wikidata":"https://www.wikidata.org/wiki/Q2296401","display_name":"Phone call","level":3,"score":0.35350000858306885},{"id":"https://openalex.org/C2779473830","wikidata":"https://www.wikidata.org/wiki/Q1540899","display_name":"MEDLINE","level":2,"score":0.3246999979019165},{"id":"https://openalex.org/C105152847","wikidata":"https://www.wikidata.org/wiki/Q5021685","display_name":"Call to action","level":2,"score":0.2906000018119812},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.2903999984264374},{"id":"https://openalex.org/C2779891985","wikidata":"https://www.wikidata.org/wiki/Q46994","display_name":"Telemedicine","level":3,"score":0.28780001401901245},{"id":"https://openalex.org/C2780877353","wikidata":"https://www.wikidata.org/wiki/Q2518253","display_name":"Health services research","level":3,"score":0.2741999924182892},{"id":"https://openalex.org/C2778080475","wikidata":"https://www.wikidata.org/wiki/Q4353774","display_name":"Health communication","level":2,"score":0.26899999380111694},{"id":"https://openalex.org/C3018280585","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Health care delivery","level":3,"score":0.2542000114917755}],"mesh":[{"descriptor_ui":"D003695","descriptor_name":"Delivery of Health Care","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013689","descriptor_name":"Telephone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D017954","descriptor_name":"Africa South of the Sahara","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D059012","descriptor_name":"Lost to Follow-Up","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":7,"locations":[{"id":"doi:10.1371/journal.pone.0334894","doi":"https://doi.org/10.1371/journal.pone.0334894","is_oa":true,"landing_page_url":"https://doi.org/10.1371/journal.pone.0334894","pdf_url":"https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0334894&type=printable","source":{"id":"https://openalex.org/S202381698","display_name":"PLoS ONE","issn_l":"1932-6203","issn":["1932-6203"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","erih-plus","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315706","host_organization_name":"Public Library of Science","host_organization_lineage":["https://openalex.org/P4310315706"],"host_organization_lineage_names":["Public Library of Science"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"PLOS One","raw_type":"journal-article"},{"id":"pmh:oai:europepmc.org:11364390","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/12558458","pdf_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12558458/pdf/pone.0334894.pdf","source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"Text"},{"id":"pmid:41144439","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/41144439","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"PloS one","raw_type":"Journal Article"},{"id":"pmh:cdr.lib.unc.edu:kh04f531f","doi":null,"is_oa":true,"landing_page_url":"https://doi.org/10.17615/yqts-p732","pdf_url":null,"source":{"id":"https://openalex.org/S4306401075","display_name":"Carolina Digital Repository (University of North Carolina at Chapel Hill)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I114027177","host_organization_name":"University of North Carolina at Chapel Hill","host_organization_lineage":["https://openalex.org/I114027177"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"PLOS One, 20(498120)","raw_type":"Article"},{"id":"pmh:oai:doaj.org/article:545bf519a2324460a1305162a8ae88c0","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/545bf519a2324460a1305162a8ae88c0","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"PLoS ONE, Vol 20, Iss 10 (2025)","raw_type":"article"},{"id":"pmh:oai:doaj.org/article:e5acc301daa045fabd6b2b79c7092985","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/e5acc301daa045fabd6b2b79c7092985","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"PLoS ONE, Vol 20, Iss 10, p e0334894 (2025)","raw_type":"article"},{"id":"doi:10.17615/yqts-p732","doi":"https://doi.org/10.17615/yqts-p732","is_oa":true,"landing_page_url":"https://doi.org/10.17615/yqts-p732","pdf_url":null,"source":{"id":"https://openalex.org/S7407051488","display_name":"UNC Libraries","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"doi:10.1371/journal.pone.0334894","doi":"https://doi.org/10.1371/journal.pone.0334894","is_oa":true,"landing_page_url":"https://doi.org/10.1371/journal.pone.0334894","pdf_url":"https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0334894&type=printable","source":{"id":"https://openalex.org/S202381698","display_name":"PLoS ONE","issn_l":"1932-6203","issn":["1932-6203"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","dongbi-c","doyens","erih-plus","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315706","host_organization_name":"Public Library of Science","host_organization_lineage":["https://openalex.org/P4310315706"],"host_organization_lineage_names":["Public Library of Science"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"PLOS One","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.98580002784729,"display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/systematic-review","display_name":"Systematic Review"},{"id":"https://openalex.org/study-designs/meta-analysis","display_name":"Meta-Analysis"}],"awards":[],"funders":[{"id":"https://openalex.org/F2666706692","display_name":"Deanship of Scientific Research, Imam Mohammed Ibn Saud Islamic University","ror":null},{"id":"https://openalex.org/F4320306114","display_name":"U.S. Department of Agriculture","ror":"https://ror.org/01na82s61"},{"id":"https://openalex.org/F4320306127","display_name":"U.S. Department of Veterans Affairs","ror":"https://ror.org/05rsv9s98"},{"id":"https://openalex.org/F4320306137","display_name":"Bill and Melinda Gates Foundation","ror":"https://ror.org/0456r8d26"},{"id":"https://openalex.org/F4320308849","display_name":"Kaiser Permanente","ror":"https://ror.org/00t60zh31"},{"id":"https://openalex.org/F4320309123","display_name":"Division of Intramural Research, National Institute of Allergy and Infectious Diseases","ror":"https://ror.org/043z4tv69"},{"id":"https://openalex.org/F4320313199","display_name":"Iran University of Medical Sciences","ror":"https://ror.org/03w04rv71"},{"id":"https://openalex.org/F4320313613","display_name":"Natural Science Foundation of Guangxi Zhuang Autonomous Region","ror":null},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321945","display_name":"Ministry of Health, Labour and Welfare","ror":"https://ror.org/03mwa7s65"},{"id":"https://openalex.org/F4320322557","display_name":"Seoul National University Hospital","ror":"https://ror.org/01z4nnt86"},{"id":"https://openalex.org/F4320322650","display_name":"Narodowym Centrum Nauki","ror":"https://ror.org/03ha2q922"},{"id":"https://openalex.org/F4320322995","display_name":"Doosan Yonkang Foundation","ror":"https://ror.org/040zfw946"},{"id":"https://openalex.org/F4320323190","display_name":"Fujian Provincial Department of Science and Technology","ror":"https://ror.org/00rgzpv08"},{"id":"https://openalex.org/F4320324433","display_name":"King Khalid University","ror":"https://ror.org/052kwzs30"},{"id":"https://openalex.org/F4320324967","display_name":"Department of Health of Hebei Province","ror":"https://ror.org/018zra666"},{"id":"https://openalex.org/F4320327494","display_name":"Ministry of Science and Higher Education of the Russian Federation","ror":null},{"id":"https://openalex.org/F4320329240","display_name":"Qinghai Provincial Key Laboratory of Tibetan Medicine Research","ror":null},{"id":"https://openalex.org/F4320329334","display_name":"Dongguan Science and Technology Bureau","ror":"https://ror.org/05ncevf52"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"},{"id":"https://openalex.org/F4320332162","display_name":"Centers for Disease Control and Prevention","ror":"https://ror.org/042twtr12"},{"id":"https://openalex.org/F4320332184","display_name":"National Academy of Sciences","ror":"https://ror.org/038mfx688"},{"id":"https://openalex.org/F4320332999","display_name":"Horizon 2020 Framework Programme","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320334118","display_name":"United States Special Operations Command","ror":"https://ror.org/03scae842"},{"id":"https://openalex.org/F4320334978","display_name":"Beijing Nova Program","ror":"https://ror.org/034k14f91"},{"id":"https://openalex.org/F4320335045","display_name":"National Plan for Science, Technology and Innovation","ror":"https://ror.org/02f81g417"},{"id":"https://openalex.org/F4320335784","display_name":"Zhejiang Traditional Chinese Medicine Administration","ror":"https://ror.org/05c3h8q72"},{"id":"https://openalex.org/F4320336350","display_name":"Key Research and Development Projects of Shaanxi Province","ror":null},{"id":"https://openalex.org/F4320336727","display_name":"Deanship of Research, Jordan University of Science and Technology","ror":null},{"id":"https://openalex.org/F4320336753","display_name":"Changsha Science and Technology Project","ror":null},{"id":"https://openalex.org/F4320337156","display_name":"College of Food and Agriculture Sciences, King Saud University","ror":null},{"id":"https://openalex.org/F4320337338","display_name":"National Heart, Lung, and Blood Institute","ror":"https://ror.org/012pb6c26"},{"id":"https://openalex.org/F4320337364","display_name":"National Institute of Child Health and Human Development","ror":"https://ror.org/04byxyr05"},{"id":"https://openalex.org/F4320337375","display_name":"National Center for Research Resources","ror":"https://ror.org/04pw6fb54"},{"id":"https://openalex.org/F4320337401","display_name":"Division of Emerging Frontiers","ror":"https://ror.org/01tnvpc68"},{"id":"https://openalex.org/F4320338199","display_name":"Medical Science and Technology Project of Zhejiang Province","ror":null},{"id":"https://openalex.org/F4320338464","display_name":"Natural Science Foundation of Zhejiang Province","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4415594906.pdf","grobid_xml":"https://content.openalex.org/works/W4415594906.grobid-xml"},"referenced_works_count":68,"referenced_works":["https://openalex.org/W71228264","https://openalex.org/W1883984397","https://openalex.org/W1964064801","https://openalex.org/W1972258291","https://openalex.org/W1975071629","https://openalex.org/W1979290264","https://openalex.org/W1985571722","https://openalex.org/W1997001139","https://openalex.org/W2005501262","https://openalex.org/W2044414901","https://openalex.org/W2063277639","https://openalex.org/W2069782422","https://openalex.org/W2079558133","https://openalex.org/W2101225446","https://openalex.org/W2113391705","https://openalex.org/W2122329766","https://openalex.org/W2122858038","https://openalex.org/W2125435699","https://openalex.org/W2131915193","https://openalex.org/W2139168999","https://openalex.org/W2157823046","https://openalex.org/W2161810494","https://openalex.org/W2165606419","https://openalex.org/W2324207353","https://openalex.org/W2407499499","https://openalex.org/W2461860376","https://openalex.org/W2561537025","https://openalex.org/W2589231326","https://openalex.org/W2606454972","https://openalex.org/W2772815373","https://openalex.org/W2805271750","https://openalex.org/W2807609678","https://openalex.org/W2883759047","https://openalex.org/W2890104289","https://openalex.org/W2898055724","https://openalex.org/W2905227372","https://openalex.org/W2908976112","https://openalex.org/W2920720422","https://openalex.org/W2954728549","https://openalex.org/W2987127171","https://openalex.org/W2999531582","https://openalex.org/W3016527021","https://openalex.org/W3017588314","https://openalex.org/W3022350645","https://openalex.org/W3035333358","https://openalex.org/W3048928929","https://openalex.org/W3061102166","https://openalex.org/W3088323705","https://openalex.org/W3090031674","https://openalex.org/W3119038771","https://openalex.org/W3131132183","https://openalex.org/W3153575792","https://openalex.org/W3161103993","https://openalex.org/W3178686445","https://openalex.org/W3188812927","https://openalex.org/W3194185186","https://openalex.org/W3197263839","https://openalex.org/W4214820357","https://openalex.org/W4229368720","https://openalex.org/W4281737833","https://openalex.org/W4288476388","https://openalex.org/W4317553692","https://openalex.org/W4381798358","https://openalex.org/W4395081632","https://openalex.org/W4396564589","https://openalex.org/W4396720154","https://openalex.org/W4399948063","https://openalex.org/W4403108565"],"related_works":["https://openalex.org/W3048928929","https://openalex.org/W2803518333","https://openalex.org/W2004961362","https://openalex.org/W2605561810","https://openalex.org/W3006661602","https://openalex.org/W2305876132","https://openalex.org/W3186420128","https://openalex.org/W2337456800","https://openalex.org/W7169767472","https://openalex.org/W4306749992"],"abstract_inverted_index":{"BACKGROUND:":[0],"Healthcare":[1],"systems":[2],"in":[3,42,62,79,88,205,293,314,322,370],"Sub-Saharan":[4],"Africa":[5],"(SSA)":[6],"face":[7],"significant":[8],"challenges,":[9],"including":[10,123],"limited":[11,51],"resources,":[12],"understaffing,":[13],"and":[14,38,68,76,90,104,112,132,152,208,225,257,309,337,345,354],"geographical":[15],"barriers,":[16],"which":[17],"hinder":[18],"effective":[19],"healthcare":[20,368],"delivery.":[21],"Phone":[22,302],"call":[23,86,170,303,361],"follow-ups":[24,87,304,362],"have":[25,305],"emerged":[26],"as":[27,244,246,272,282],"a":[28,145,173,217],"promising":[29],"strategy":[30],"to":[31,102,120,148,157,249,331,366],"improve":[32],"participant":[33,219,258,307,338],"retention,":[34],"enhance":[35,351],"data":[36],"accuracy,":[37],"optimize":[39,367],"health":[40,60,92,105,312,318],"outcomes":[41,106,313],"resource-constrained":[43,371],"settings.":[44,372],"Despite":[45],"their":[46,55,352],"growing":[47],"adoption,":[48],"there":[49],"is":[50],"synthesized":[52],"evidence":[53],"of":[54,110,161,222,261,267,277],"effectiveness":[56],"across":[57,189],"various":[58],"public":[59],"contexts":[61],"SSA.":[63],"METHODOLOGY:":[64],"This":[65],"systematic":[66],"review":[67],"meta-analysis":[69],"included":[70,175,251],"32":[71],"studies":[72,131,176,190,235,269,279,294],"published":[73],"between":[74],"2000":[75],"2024,":[77],"conducted":[78,156],"11":[80],"SSA":[81,311],"countries.":[82,200],"Studies":[83],"employing":[84],"phone":[85,169,182,360],"community":[89],"facility-based":[91],"interventions":[93],"were":[94,107,114,203,229,270,280],"evaluated.":[95],"Participant":[96],"retention":[97,187,233,242,308,323],"rates,":[98,297],"reasons":[99],"for":[100,129,139,328],"loss":[101,220],"follow-up,":[103],"analyzed.":[108],"Risk":[109,260],"bias":[111,262,289],"quality":[113],"assessed":[115,281],"using":[116],"validated":[117],"tools":[118],"tailored":[119,329],"study":[121],"designs,":[122],"the":[124,133,159,164,326],"Hoy":[125],"et":[126],"al.":[127],"checklist":[128,138],"observational":[130,268],"Joanna":[134],"Briggs":[135],"Institute":[136],"(JBI)":[137],"experimental":[140,278],"studies.":[141],"Statistical":[142],"analysis":[143,154],"employed":[144],"random-effects":[146],"model":[147],"calculate":[149],"pooled":[150,186],"estimates":[151],"sensitivity":[153],"was":[155,167,191],"assess":[158],"robustness":[160],"findings.":[162],"Although":[163],"primary":[165],"focus":[166],"on":[168],"follow-up":[171,227,250,348],"interventions,":[172],"few":[174],"also":[177],"utilized":[178],"text":[179],"messaging":[180],"alongside":[181],"calls.":[183],"RESULTS:":[184],"The":[185],"rate":[188,221],"89%":[192],"(95%":[193],"CI:":[194],"85-91),":[195],"with":[196,231,316],"substantial":[197],"variability":[198,321],"among":[199],"Retention":[201],"rates":[202,243,324],"highest":[204],"Kenya":[206],"(96%)":[207],"Nigeria":[209],"(87%).":[210],"In":[211],"contrast,":[212],"countries":[213],"like":[214,334,343],"Cameroon":[215],"reported":[216,241],"high":[218,245,283],"42%.":[223],"Frequent":[224],"consistent":[226,347],"calls":[228],"associated":[230],"improved":[232,310],"rates;":[234],"that":[236,265],"contacted":[237],"participants":[238],"4-5":[239],"times":[240],"98%.":[247],"Barriers":[248],"network":[252,335],"issues,":[253],"outdated":[254],"contact":[255],"information,":[256],"relocations.":[259],"assessments":[263],"showed":[264],"81%":[266],"rated":[271],"low":[273],"risk.":[274],"Additionally,":[275],"69%":[276],"quality.":[284],"Funnel":[285],"plots":[286],"assessing":[287],"publication":[288],"indicated":[290],"some":[291],"asymmetry":[292],"reporting":[295],"lost":[296],"suggesting":[298],"potential":[299],"bias.":[300],"CONCLUSION:":[301],"enhanced":[306],"regions":[315],"robust":[317],"infrastructure.":[319],"However,":[320],"underscores":[325],"need":[327],"strategies":[330],"address":[332],"barriers":[333],"challenges":[336],"mobility.":[339],"Integrating":[340],"innovative":[341],"platforms":[342],"WhatsApp":[344],"leveraging":[346],"methods":[349],"can":[350],"scalability":[353],"impact.":[355],"Policymakers":[356],"should":[357],"consider":[358],"incorporating":[359],"into":[363],"routine":[364],"care":[365],"delivery":[369]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2025-10-28T00:00:00"}
