{"id":"https://openalex.org/W2980868091","doi":"https://doi.org/10.1016/j.ijnurstu.2019.103450","title":"Reporting sample size calculations for randomized controlled trials published in nursing journals: A cross-sectional study","display_name":"Reporting sample size calculations for randomized controlled trials published in nursing journals: A cross-sectional study","publication_year":2019,"publication_date":"2019-10-17","ids":{"openalex":"https://openalex.org/W2980868091","doi":"https://doi.org/10.1016/j.ijnurstu.2019.103450","mag":"2980868091","pmid":"https://pubmed.ncbi.nlm.nih.gov/31731176"},"language":"en","primary_location":{"id":"doi:10.1016/j.ijnurstu.2019.103450","doi":"https://doi.org/10.1016/j.ijnurstu.2019.103450","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijnurstu.2019.103450","pdf_url":null,"source":{"id":"https://openalex.org/S56493663","display_name":"International Journal of Nursing Studies","issn_l":"0020-7489","issn":["0020-7489","1873-491X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Nursing Studies","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://scholarbank.nus.edu.sg/handle/10635/161763","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5033756912","display_name":"Wilson Tam","orcid":"https://orcid.org/0000-0003-0641-3060","observed_orcids":["https://orcid.org/0000-0003-0641-3060"]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Wilson Tam","raw_affiliation_strings":["Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address: nurtwsw@nus.edu.sg","Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-0641-3060","affiliations":[{"raw_affiliation_string":"Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address: nurtwsw@nus.edu.sg","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063090109","display_name":"Kenneth Ka-Hei Lo","orcid":"https://orcid.org/0000-0003-4624-2737","observed_orcids":["https://orcid.org/0000-0003-4624-2737"]},"institutions":[{"id":"https://openalex.org/I27804330","display_name":"Brown University","ror":"https://ror.org/05gq02987","country_code":"US","type":"education","lineage":["https://openalex.org/I27804330"]},{"id":"https://openalex.org/I4210145693","display_name":"Guangdong Academy of Medical Sciences","ror":"https://ror.org/0432p8t34","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210145693"]},{"id":"https://openalex.org/I4210153930","display_name":"Guangdong Provincial People's Hospital","ror":"https://ror.org/045kpgw45","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210153930"]}],"countries":["CN","US"],"is_corresponding":true,"raw_author_name":"Kenneth Lo","raw_affiliation_strings":["Department of Cardiology, Guangdong Cardiovascular Institute, Hypertension Research Laboratory, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, Guangzhou 510080, China; Centre for Global Cardiometabolic Health, Department of Epidemiology, Brown University, USA. Electronic address: kenneth_lo@brown.edu","Centre for Global Cardiometabolic Health, Department of Epidemiology, Brown University, USA","Department of Cardiology, Guangdong Cardiovascular Institute, Hypertension Research Laboratory, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, Guangzhou 510080, China"],"raw_orcid":"https://orcid.org/0000-0003-4624-2737","affiliations":[{"raw_affiliation_string":"Department of Cardiology, Guangdong Cardiovascular Institute, Hypertension Research Laboratory, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, Guangzhou 510080, China; Centre for Global Cardiometabolic Health, Department of Epidemiology, Brown University, USA. Electronic address: kenneth_lo@brown.edu","institution_ids":["https://openalex.org/I27804330","https://openalex.org/I4210145693","https://openalex.org/I4210153930"]},{"raw_affiliation_string":"Centre for Global Cardiometabolic Health, Department of Epidemiology, Brown University, USA","institution_ids":["https://openalex.org/I27804330"]},{"raw_affiliation_string":"Department of Cardiology, Guangdong Cardiovascular Institute, Hypertension Research Laboratory, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, Guangzhou 510080, China","institution_ids":["https://openalex.org/I4210145693","https://openalex.org/I4210153930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067677110","display_name":"Brigitte Woo","orcid":"https://orcid.org/0000-0003-2988-2169","observed_orcids":["https://orcid.org/0000-0003-2988-2169"]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Brigitte Woo","raw_affiliation_strings":["Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-2988-2169","affiliations":[{"raw_affiliation_string":"Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5063090109"],"corresponding_institution_ids":["https://openalex.org/I27804330","https://openalex.org/I4210145693","https://openalex.org/I4210153930"],"apc_list":{"value":3150,"currency":"USD","value_usd":3150},"apc_paid":null,"fwci":0.8355,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.77874942,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"102","issue":null,"first_page":"103450","last_page":"103450"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10206","display_name":"Meta-analysis and systematic reviews","score":0.8901000022888184,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10206","display_name":"Meta-analysis and systematic reviews","score":0.8901000022888184,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11235","display_name":"Statistical Methods in Clinical Trials","score":0.07999999821186066,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14374","display_name":"Statistical Methods in Epidemiology","score":0.01810000091791153,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/sample-size-calculation","display_name":"sample size determination","score":0.968999981880188},{"id":"https://openalex.org/keywords/reporting-quality","display_name":"reporting quality","score":0.8479999899864197},{"id":"https://openalex.org/keywords/randomized-controlled-trials","display_name":"randomized controlled trials","score":0.7900000214576721},{"id":"https://openalex.org/keywords/nursing-journals","display_name":"nursing journals","score":0.7699999809265137},{"id":"https://openalex.org/keywords/statistical-power","display_name":"statistical power","score":0.9660000205039978},{"id":"https://openalex.org/keywords/effect-size","display_name":"effect size","score":0.8790000081062317},{"id":"https://openalex.org/keywords/significance-level","display_name":"significance level","score":0.8420000076293945}],"concepts":[{"id":"https://openalex.org/C129848803","wikidata":"https://www.wikidata.org/wiki/Q2564360","display_name":"Sample size determination","level":2,"score":0.8707098960876465},{"id":"https://openalex.org/C168563851","wikidata":"https://www.wikidata.org/wiki/Q1436668","display_name":"Randomized controlled trial","level":2,"score":0.7222114205360413},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6151169538497925},{"id":"https://openalex.org/C198531522","wikidata":"https://www.wikidata.org/wiki/Q485146","display_name":"Sample (material)","level":2,"score":0.4966655373573303},{"id":"https://openalex.org/C142052008","wikidata":"https://www.wikidata.org/wiki/Q954027","display_name":"Cross-sectional study","level":2,"score":0.42161041498184204},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.31607872247695923},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15853700041770935},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.09121260046958923},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D003430","descriptor_name":"Cross-Sectional Studies","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":"D009729","descriptor_name":"Nursing","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011643","descriptor_name":"Publishing","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D016032","descriptor_name":"Randomized Controlled Trials as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D018401","descriptor_name":"Sample Size","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":3,"locations":[{"id":"doi:10.1016/j.ijnurstu.2019.103450","doi":"https://doi.org/10.1016/j.ijnurstu.2019.103450","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijnurstu.2019.103450","pdf_url":null,"source":{"id":"https://openalex.org/S56493663","display_name":"International Journal of Nursing Studies","issn_l":"0020-7489","issn":["0020-7489","1873-491X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Nursing Studies","raw_type":"journal-article"},{"id":"pmid:31731176","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/31731176","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":"International journal of nursing studies","raw_type":"Journal Article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/161763","doi":null,"is_oa":true,"landing_page_url":"https://scholarbank.nus.edu.sg/handle/10635/161763","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"}],"best_oa_location":{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/161763","doi":null,"is_oa":true,"landing_page_url":"https://scholarbank.nus.edu.sg/handle/10635/161763","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},"sustainable_development_goals":[{"score":0.8048999905586243,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W1517421440","https://openalex.org/W1538819487","https://openalex.org/W1971744775","https://openalex.org/W1984610413","https://openalex.org/W1990758572","https://openalex.org/W1999981922","https://openalex.org/W2032541700","https://openalex.org/W2037557484","https://openalex.org/W2039964888","https://openalex.org/W2048728421","https://openalex.org/W2049397178","https://openalex.org/W2104403915","https://openalex.org/W2107031757","https://openalex.org/W2108696783","https://openalex.org/W2118329513","https://openalex.org/W2127987014","https://openalex.org/W2130796303","https://openalex.org/W2157678920","https://openalex.org/W2166023752","https://openalex.org/W2173262953","https://openalex.org/W2225555213","https://openalex.org/W2278086191","https://openalex.org/W2318116326","https://openalex.org/W2318649968","https://openalex.org/W2325859019","https://openalex.org/W2345358269","https://openalex.org/W2347101224","https://openalex.org/W2462552250","https://openalex.org/W2472457460","https://openalex.org/W2474697554","https://openalex.org/W2481029616","https://openalex.org/W2512830180","https://openalex.org/W2517456422","https://openalex.org/W2565458343","https://openalex.org/W2582380376","https://openalex.org/W2587709396","https://openalex.org/W2737104455","https://openalex.org/W2791654841","https://openalex.org/W2792145631","https://openalex.org/W2888501779","https://openalex.org/W2896919115","https://openalex.org/W2899988464","https://openalex.org/W2901282455","https://openalex.org/W2905752450","https://openalex.org/W2948797982","https://openalex.org/W2995826184","https://openalex.org/W3022423927","https://openalex.org/W4296473084","https://openalex.org/W4300870773","https://openalex.org/W4398793246"],"related_works":["https://openalex.org/W3198273081","https://openalex.org/W2039964888","https://openalex.org/W2181330991","https://openalex.org/W2225555213","https://openalex.org/W2153513927","https://openalex.org/W3087695377","https://openalex.org/W4200434117","https://openalex.org/W2534952003","https://openalex.org/W1969257925","https://openalex.org/W2905752450"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2020,"cited_by_count":2}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2019-10-25T00:00:00"}