{"id":"https://openalex.org/W2155386352","doi":"https://doi.org/10.1186/1471-2474-12-220","title":"Acute low back pain is marked by variability: An internet-based pilot study","display_name":"Acute low back pain is marked by variability: An internet-based pilot study","publication_year":2011,"publication_date":"2011-10-05","ids":{"openalex":"https://openalex.org/W2155386352","doi":"https://doi.org/10.1186/1471-2474-12-220","mag":"2155386352","pmid":"https://pubmed.ncbi.nlm.nih.gov/21974962","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/3198993"},"language":"en","primary_location":{"id":"doi:10.1186/1471-2474-12-220","doi":"https://doi.org/10.1186/1471-2474-12-220","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-2474-12-220","pdf_url":"https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/1471-2474-12-220","source":{"id":"https://openalex.org/S35439863","display_name":"BMC Musculoskeletal Disorders","issn_l":"1471-2474","issn":["1471-2474"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Musculoskeletal Disorders","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/1471-2474-12-220","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5027932359","display_name":"Pradeep Suri","orcid":"https://orcid.org/0000-0002-9449-4165","observed_orcids":["https://orcid.org/0000-0002-9449-4165"]},"institutions":[{"id":"https://openalex.org/I2801671727","display_name":"VA Boston Healthcare System","ror":"https://ror.org/04v00sg98","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I2801671727","https://openalex.org/I4210095851"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Pradeep Suri","raw_affiliation_strings":["Division of PM&R, VA Boston Healthcare System, Boston, USA. pradeep.suri@va.gov","Division of PM&R, VA Boston Healthcare System, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of PM&R, VA Boston Healthcare System, Boston, USA. pradeep.suri@va.gov","institution_ids":["https://openalex.org/I2801671727"]},{"raw_affiliation_string":"Division of PM&R, VA Boston Healthcare System, Boston, USA","institution_ids":["https://openalex.org/I2801671727"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053216748","display_name":"James Rainville","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"James Rainville","raw_affiliation_strings":["Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055526341","display_name":"Garrett M. Fitzmaurice","orcid":"https://orcid.org/0000-0002-2265-8810","observed_orcids":["https://orcid.org/0000-0002-2265-8810"]},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Garrett M Fitzmaurice","raw_affiliation_strings":["Department of Biostatistics, Harvard School of Public Health, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biostatistics, Harvard School of Public Health, Boston, USA","institution_ids":["https://openalex.org/I136199984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030816361","display_name":"Jeffrey Neil Katz","orcid":"https://orcid.org/0000-0003-2104-4670","observed_orcids":["https://orcid.org/0000-0003-2104-4670","https://orcid.org/0000-0001-8647-7704"]},"institutions":[{"id":"https://openalex.org/I1283280774","display_name":"Brigham and Women's Hospital","ror":"https://ror.org/04b6nzv94","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I121934306","https://openalex.org/I1283280774","https://openalex.org/I48633490"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jeffrey N Katz","raw_affiliation_strings":["Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA","Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984"]},{"raw_affiliation_string":"Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067130173","display_name":"Robert N. Jamison","orcid":"https://orcid.org/0000-0003-1768-0906","observed_orcids":["https://orcid.org/0000-0003-1768-0906"]},"institutions":[{"id":"https://openalex.org/I1283280774","display_name":"Brigham and Women's Hospital","ror":"https://ror.org/04b6nzv94","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I121934306","https://openalex.org/I1283280774","https://openalex.org/I48633490"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Robert N Jamison","raw_affiliation_strings":["Departments of Anesthesiology and Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departments of Anesthesiology and Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004261462","display_name":"Julia F. Martha","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]},{"id":"https://openalex.org/I4210098573","display_name":"New England Research Institutes","ror":"https://ror.org/01655nh08","country_code":"US","type":"facility","lineage":["https://openalex.org/I4210098573"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Julia Martha","raw_affiliation_strings":["New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","New England Research Institutes, 9 Galen Street, Watertown, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]},{"raw_affiliation_string":"New England Research Institutes, 9 Galen Street, Watertown, USA","institution_ids":["https://openalex.org/I4210098573"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109839869","display_name":"Carol Hartigan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Carol Hartigan","raw_affiliation_strings":["Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044032737","display_name":"Janet C. Limke","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Janet Limke","raw_affiliation_strings":["Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057763647","display_name":"Cristin Jouve","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Cristin Jouve","raw_affiliation_strings":["Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA","institution_ids":["https://openalex.org/I136199984"]},{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080921373","display_name":"David John Hunter","orcid":"https://orcid.org/0000-0003-3197-752X","observed_orcids":["https://orcid.org/0000-0003-3197-752X"]},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"The University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]},{"id":"https://openalex.org/I1334126862","display_name":"New England Baptist Hospital","ror":"https://ror.org/01w50jw95","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1334126862"]}],"countries":["AU","US"],"is_corresponding":false,"raw_author_name":"David J Hunter","raw_affiliation_strings":["New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","Northern Clinical School, The University of Sydney, Sydney, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"New England Baptist Hospital, 125 Parker Hill Avenue, Boston, USA","institution_ids":["https://openalex.org/I1334126862"]},{"raw_affiliation_string":"Northern Clinical School, The University of Sydney, Sydney, Australia","institution_ids":["https://openalex.org/I129604602"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5027932359"],"corresponding_institution_ids":["https://openalex.org/I2801671727"],"apc_list":{"value":3090,"currency":"USD","value_usd":3090},"apc_paid":{"value":3090,"currency":"USD","value_usd":3090},"fwci":1.4058,"has_fulltext":true,"cited_by_count":33,"citation_normalized_percentile":{"value":0.79995226,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"12","issue":"1","first_page":"220","last_page":"220"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10084","display_name":"Musculoskeletal pain and rehabilitation","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10084","display_name":"Musculoskeletal pain and rehabilitation","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10238","display_name":"Spine and Intervertebral Disc Pathology","score":0.0010000000474974513,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12715","display_name":"Pregnancy-related medical research","score":9.999999747378752e-05,"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/acute-low-back-pain","display_name":"acute low back pain","score":0.9990000128746033},{"id":"https://openalex.org/keywords/pain-variability","display_name":"pain variability","score":0.9539999961853027},{"id":"https://openalex.org/keywords/pain-flare","display_name":"pain flare","score":0.9869999885559082},{"id":"https://openalex.org/keywords/flare-frequency","display_name":"flare frequency","score":0.7699999809265137},{"id":"https://openalex.org/keywords/pain-intensity","display_name":"pain intensity","score":0.7839999794960022},{"id":"https://openalex.org/keywords/oswestry-disability-index","display_name":"Oswestry Disability Index","score":0.9520000219345093},{"id":"https://openalex.org/keywords/web-based-data-collection","display_name":"online data collection","score":0.753000020980835}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8719868659973145},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.620466411113739},{"id":"https://openalex.org/C2780907711","wikidata":"https://www.wikidata.org/wiki/Q852163","display_name":"Low back pain","level":3,"score":0.49740365147590637},{"id":"https://openalex.org/C64946054","wikidata":"https://www.wikidata.org/wiki/Q4874476","display_name":"Bayesian multivariate linear regression","level":3,"score":0.4888107478618622},{"id":"https://openalex.org/C2775998654","wikidata":"https://www.wikidata.org/wiki/Q11751687","display_name":"Oswestry Disability Index","level":4,"score":0.4245983958244324},{"id":"https://openalex.org/C43893838","wikidata":"https://www.wikidata.org/wiki/Q840545","display_name":"Sports medicine","level":2,"score":0.42105913162231445},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.4201996922492981},{"id":"https://openalex.org/C2776501849","wikidata":"https://www.wikidata.org/wiki/Q5781808","display_name":"Back pain","level":3,"score":0.41179537773132324},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.32564830780029297},{"id":"https://openalex.org/C48921125","wikidata":"https://www.wikidata.org/wiki/Q10861030","display_name":"Linear regression","level":2,"score":0.25024890899658203},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.22985851764678955},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","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}],"mesh":[{"descriptor_ui":"D003625","descriptor_name":"Data Collection","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D004185","descriptor_name":"Disability Evaluation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","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":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010147","descriptor_name":"Pain Measurement","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010865","descriptor_name":"Pilot Projects","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011795","descriptor_name":"Surveys and Questionnaires","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015331","descriptor_name":"Cohort Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017116","descriptor_name":"Low Back Pain","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D017116","descriptor_name":"Low Back Pain","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D020407","descriptor_name":"Internet","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D059787","descriptor_name":"Acute Pain","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D059787","descriptor_name":"Acute Pain","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false}],"locations_count":7,"locations":[{"id":"doi:10.1186/1471-2474-12-220","doi":"https://doi.org/10.1186/1471-2474-12-220","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-2474-12-220","pdf_url":"https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/1471-2474-12-220","source":{"id":"https://openalex.org/S35439863","display_name":"BMC Musculoskeletal Disorders","issn_l":"1471-2474","issn":["1471-2474"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Musculoskeletal Disorders","raw_type":"journal-article"},{"id":"pmh:oai:europepmc.org:2200837","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3198993","pdf_url":null,"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":"pmh:oai:pubmedcentral.nih.gov:3198993","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3198993","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Musculoskelet Disord","raw_type":"Text"},{"id":"pmid:21974962","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/21974962","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":"BMC musculoskeletal disorders","raw_type":"Journal Article"},{"id":"pmh:oai:dash.harvard.edu:1/37372994","doi":null,"is_oa":false,"landing_page_url":"https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37372994","pdf_url":null,"source":{"id":"https://openalex.org/S4306401540","display_name":"Digital Access to Scholarship at Harvard (DASH) (Harvard University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I136199984","host_organization_name":"Harvard University","host_organization_lineage":["https://openalex.org/I136199984"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Journal Article"},{"id":"pmh:oai:doaj.org/article:1ef2e22c429b4f8ea60e7e7fab8aa7dd","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/1ef2e22c429b4f8ea60e7e7fab8aa7dd","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"BMC Musculoskeletal Disorders, Vol 12, Iss 1, p 220 (2011)","raw_type":"article"},{"id":"pmh:oai:ses.library.usyd.edu.au:2123/9942","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2123/9942","pdf_url":null,"source":{"id":"https://openalex.org/S4306402414","display_name":"The Sydney eScholarship Repository (The University of Sydney)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I129604602","host_organization_name":"The University of Sydney","host_organization_lineage":["https://openalex.org/I129604602"],"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":null,"raw_type":"Article"}],"best_oa_location":{"id":"doi:10.1186/1471-2474-12-220","doi":"https://doi.org/10.1186/1471-2474-12-220","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-2474-12-220","pdf_url":"https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/1471-2474-12-220","source":{"id":"https://openalex.org/S35439863","display_name":"BMC Musculoskeletal Disorders","issn_l":"1471-2474","issn":["1471-2474"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Musculoskeletal Disorders","raw_type":"journal-article"},"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"sustainable_development_goals_aurora":[{"score":0.6200000047683716,"id":"https://metadata.un.org/sdg/4","display_name":"Quality education"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[{"id":"https://openalex.org/G1120021779","display_name":null,"funder_award_id":"DA024298","funder_id":"https://openalex.org/F4320337347","funder_display_name":"National Institute on Drug Abuse"},{"id":"https://openalex.org/G1995763379","display_name":"Rehabilitation Medicine Scientist Training (RMST) Program","funder_award_id":"K12HD001097","funder_id":"https://openalex.org/F4320337611","funder_display_name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development"},{"id":"https://openalex.org/G3496748216","display_name":"NIAMS Multidisciplinary Clinical Research Center","funder_award_id":"P60AR047782","funder_id":"https://openalex.org/F4320337362","funder_display_name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases"},{"id":"https://openalex.org/G351509943","display_name":null,"funder_award_id":"P60-AR47782","funder_id":"https://openalex.org/F4320337362","funder_display_name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases"},{"id":"https://openalex.org/G4779543198","display_name":"Musculoskeletal Research and Mentoring Programs","funder_award_id":"K24AR002123","funder_id":"https://openalex.org/F4320337362","funder_display_name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases"},{"id":"https://openalex.org/G5083964964","display_name":null,"funder_award_id":"NIH/NIDA R21","funder_id":"https://openalex.org/F4320337347","funder_display_name":"National Institute on Drug Abuse"},{"id":"https://openalex.org/G61493379","display_name":"Substance Abuse Treatment for Chronic Pain Patients on Opioid Therapy","funder_award_id":"R21DA024298","funder_id":"https://openalex.org/F4320337347","funder_display_name":"National Institute on Drug Abuse"},{"id":"https://openalex.org/G648552665","display_name":null,"funder_award_id":"K24-AR02123","funder_id":"https://openalex.org/F4320337362","funder_display_name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases"}],"funders":[{"id":"https://openalex.org/F4320310354","display_name":"Association of Academic Physiatrists","ror":"https://ror.org/03ksx7604"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"},{"id":"https://openalex.org/F4320337347","display_name":"National Institute on Drug Abuse","ror":"https://ror.org/00fq5cm18"},{"id":"https://openalex.org/F4320337362","display_name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","ror":"https://ror.org/006zn3t30"},{"id":"https://openalex.org/F4320337611","display_name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","ror":"https://ror.org/04byxyr05"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2155386352.pdf","grobid_xml":"https://content.openalex.org/works/W2155386352.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1985546163","https://openalex.org/W1994430405","https://openalex.org/W2002736415","https://openalex.org/W2005434131","https://openalex.org/W2006687786","https://openalex.org/W2009568727","https://openalex.org/W2015848760","https://openalex.org/W2015986868","https://openalex.org/W2016951920","https://openalex.org/W2019607400","https://openalex.org/W2020161850","https://openalex.org/W2030430403","https://openalex.org/W2049679785","https://openalex.org/W2049857302","https://openalex.org/W2061198628","https://openalex.org/W2072409292","https://openalex.org/W2084880898","https://openalex.org/W2089574135","https://openalex.org/W2096298151","https://openalex.org/W2111416401","https://openalex.org/W2117261595","https://openalex.org/W2124239698","https://openalex.org/W2171648622","https://openalex.org/W2325901017"],"related_works":["https://openalex.org/W4412074696","https://openalex.org/W2753560489","https://openalex.org/W3134174606","https://openalex.org/W3127888406","https://openalex.org/W3044221119","https://openalex.org/W2411651980","https://openalex.org/W2141058036","https://openalex.org/W2095273774","https://openalex.org/W3126439595","https://openalex.org/W2771246119"],"abstract_inverted_index":{"BACKGROUND:":[0],"Pain":[1,233],"variability":[2],"in":[3,20,154,206,218,231,319],"acute":[4,23,60,73,306],"LBP":[5,61,74,299,307],"has":[6,142],"received":[7],"limited":[8],"study.":[9],"The":[10],"objectives":[11],"of":[12,30,35,45,59,83,125,172,183,194,199,211,312],"this":[13],"pilot":[14],"study":[15,58],"were":[16,201,213],"to":[17,25,40,150,161,316],"characterize":[18],"fluctuations":[19],"pain":[21,31,37,97,103,118,127,135,155,177,255,320],"during":[22,236],"LBP,":[24],"determine":[26],"whether":[27,42],"self-reported":[28],"'flares'":[29],"represent":[32],"discrete":[33,184,317],"periods":[34,186],"increased":[36,126],"intensity,":[38,156],"and":[39,67,86,90,107,157,167,179,208,244],"examine":[41],"the":[43,81,112,180,237],"frequency":[44,166,280,325],"flares":[46,200,212,311],"was":[47,98,109,120,189,281],"associated":[48,283,327],"with":[49,72,222,284,305,328],"back-related":[50],"disability":[51,108,168,330],"outcomes.":[52,169,331],"METHODS:":[53],"We":[54,145],"conducted":[55],"a":[56,101,223,254,268,285],"cohort":[57],"patients":[62],"utilizing":[63],"frequent":[64],"serial":[65],"assessments":[66],"Internet-based":[68],"data":[69],"collection.":[70],"Adults":[71],"(lasting":[75],"\u22643":[76],"months)":[77],"completed":[78],"questionnaires":[79],"at":[80,87,129],"time":[82,227],"seeking":[84,242],"care,":[85,243],"both":[88],"3-day":[89],"1-week":[91],"intervals,":[92],"for":[93,226],"6":[94,192],"weeks.":[95],"Back":[96],"measured":[99,110],"using":[100,111],"numerical":[102],"rating":[104],"scale":[105],"(NPRS),":[106],"Oswestry":[113],"Disability":[114],"Index":[115],"(ODI).":[116],"A":[117,220,322],"flare":[119,165,185,256,269,279,324],"defined":[121],"as":[122],"'a":[123],"period":[124],"lasting":[128],"least":[130],"2":[131],"hours,":[132],"when":[133],"your":[134],"intensity":[136],"is":[137,300,326],"distinctly":[138],"worse":[139,329],"than":[140,197,203,215,264],"it":[141],"been":[143],"recently'.":[144],"used":[146],"mixed-effects":[147],"linear":[148,159],"regression":[149,160],"model":[151,162,221],"longitudinal":[152],"changes":[153],"multivariate":[158],"associations":[163],"between":[164],"RESULTS:":[170],"42":[171],"47":[173],"participants":[174],"(89%)":[175],"reported":[176,253],"flares,":[178],"average":[181],"number":[182],"per":[187],"patient":[188],"3.5":[190],"over":[191],"weeks":[193],"follow-up.":[195],"More":[196],"half":[198],"less":[202,214],"4":[204],"hours":[205],"duration,":[207],"about":[209,248],"75%":[210],"one":[216],"day":[217],"duration.":[219],"quadratic":[224],"trend":[225],"best":[228],"characterized":[229,301],"improvements":[230],"pain.":[232],"decreased":[234],"rapidly":[235],"first":[238],"14":[239],"days":[240],"after":[241,247],"leveled":[245],"off":[246],"28":[249],"days.":[250],"Patients":[251,304],"who":[252],"experienced":[257],"an":[258],"almost":[259],"3-point":[260],"greater":[261],"current":[262],"NPRS":[263],"those":[265],"not":[266],"reporting":[267],"(mean":[270],"difference":[271],"[SD]":[272],"2.70":[273],"[0.11];":[274],"p":[275,294],"<":[276],"0.0001).":[277],"Higher":[278],"independently":[282],"higher":[286,323],"final":[287],"ODI":[288],"score":[289],"(\u00df":[290],"[SE}":[291],"0.28":[292],"(0.08);":[293],"=":[295],"0.002).":[296],"CONCLUSIONS:":[297],"Acute":[298],"by":[302],"variability.":[303],"report":[308],"multiple":[309],"distinct":[310],"pain,":[313],"which":[314],"correspond":[315],"increases":[318],"intensity.":[321]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}