{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T02:10:19Z","timestamp":1784945419443,"version":"3.55.0"},"reference-count":53,"publisher":"JMIR Publications Inc.","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Interact J Med Res"],"abstract":"\n Background<\/jats:title>\n Surveys of internet panels such as Amazon\u2019s Mechanical Turk (MTurk) are common in health research. Nonresponse in longitudinal studies can limit inferences about change over time.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n This study aimed to (1) describe the patterns of survey responses and nonresponse among MTurk members with back pain, (2) identify factors associated with survey response over time, (3) assess the impact of nonresponse on sample characteristics, and (4) assess how well inverse probability weighting can account for differences in sample composition.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n We surveyed adult MTurk workers who identified as having back pain. We report participation trends over 3 survey waves and use stepwise logistic regression to identify factors related to survey participation in successive waves.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n A total of 1678 adults participated in wave 1. Of those, 983 (59%) participated in wave 2 and 703 (42%) in wave 3. Participants who did not drop out took less time to complete previous surveys (30 min vs 35 min in wave 1, P<.001; 24 min vs 26 min in wave 2, P=.02) and reported having fewer health conditions (5.88 vs 6.6, P<.001). In multivariate models predicting responding at wave 2, lower odds of participation were associated with more time to complete the baseline survey (odds ratio [OR] 0.98, 95% CI 0.97-0.99), being Hispanic (compared with non-Hispanic, OR 0.69, 95% CI 0.49-0.96), having a bachelor\u2019s degree as their terminal degree (compared with all other levels of education, OR 0.58, 95% CI 0.46-0.73), having more pain interference and intensity (OR 0.75, 95% CI 0.64-0.89), and having more health conditions. In contrast, older respondents (older than 45 years age compared with 18-24 years age) were more likely to respond to the wave 2 survey (OR 2.63 and 3.79, respectively) and those whose marital status was divorced (OR 1.81) and separated (OR 1.77) were also more likely to respond to the wave 2 survey. Weighted analysis showed slight differences in sample demographics and conditions and larger differences in pain assessments, particularly for those who responded to wave 2.<\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Longitudinal studies on MTurk have large, differential dropouts between waves. This study provided information about the individuals more likely to drop out over time, which can help researchers prepare for future surveys.<\/jats:p>\n <\/jats:sec>","DOI":"10.2196\/58771","type":"journal-article","created":{"date-parts":[[2024,9,25]],"date-time":"2024-09-25T16:06:30Z","timestamp":1727280390000},"page":"e58771","source":"Crossref","is-referenced-by-count":1,"title":["Dropout in a Longitudinal Survey of Amazon Mechanical Turk Workers With Low Back Pain: Observational Study"],"prefix":"10.2196","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7782-8023","authenticated-orcid":false,"given":"Nabeel","family":"Qureshi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6697-907X","authenticated-orcid":false,"given":"Ron D","family":"Hays","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5579-5654","authenticated-orcid":false,"given":"Patricia M","family":"Herman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1010","published-online":{"date-parts":[[2024,11,11]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-clinpsy-021815-093623"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-psych-010814-015321"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1007\/s11606-017-4246-0"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1177\/0149206320969787"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.29115\/sp-2020-0015"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1177\/2059799116672879"},{"key":"ref7","first-page":"53","author":"Callegaro,, M","year":"2014","journal-title":"A Critical Review of Studies Investigating The Quality of Data Obtained With Online Panels Based On Probability And Nonprobability Samples1"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1002\/poi3.238"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmpt.2022.02.004"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1177\/2158244016636433"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1097\/MLR.0000000000000871"},{"key":"ref12","unstructured":"MossADemographics of People on Amazon Mechanical Turk20202024-03-09https:\/\/www.cloudresearch.com\/resources\/blog\/who-uses-amazon-mturk-2020-demographics\/"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.5993\/AJHB.46.5.1"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1145\/3159652.3159661"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1093\/jssam\/smz041"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1093\/poq\/nfn011"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.18148\/srm\/2019.v13i2.7262"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1037\/pspa0000056"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1186\/s12955-022-02015-8"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1080\/10826084.2022.2046096"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.14301\/llcs.v2i2.115"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.2196\/publichealth.7424"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1186\/s12874-017-0408-3"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1080\/13645579.2022.2091259"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinepi.2004.05.006"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1186\/s12874-019-0757-1"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1093\/poq\/nfw060"},{"issue":"415","key":"ref28","first-page":"1","author":"Lucas, JW","year":"2021","journal-title":"NCHS Data Brief"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2013.13805"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1097\/EDE.0000000000000775"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1111\/1475-6773.11194"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1017\/s1930297500005611"},{"key":"ref33","unstructured":"CloudResearchCloudResearch | Online Research & Participant Recruitment Made Easy20232023-02-28https:\/\/www.cloudresearch.com\/"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.3758\/s13428-013-0434-y"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0226394"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.3758\/s13428-022-01999-x"},{"key":"ref37","unstructured":"HermanPHaysROpen ICPSRMeasuring Chronic Pain Impacthttps:\/\/www.openicpsr.org\/openicpsr\/project\/198049\/version\/V1\/view"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.2196\/46421"},{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1093\/pm\/pnad135"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1093\/pm\/pnab175"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-200011150-00017"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.2522\/ptj.20150420"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.1007\/s11606-009-0981-1"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.1002\/art.23563"},{"key":"ref45","doi-asserted-by":"publisher","DOI":"10.1111\/tri.12895"},{"key":"ref46","doi-asserted-by":"publisher","DOI":"10.1186\/s40537-018-0143-6"},{"key":"ref47","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejpain.2010.05.007"},{"key":"ref48","unstructured":"StataCorpStata Statistical Software: Release 17. College Station, TX20242024-10-09https:\/\/www.stata.com\/support\/faqs\/resources\/citing-software-documentation-faqs\/"},{"key":"ref49","doi-asserted-by":"publisher","DOI":"10.1136\/jech-2022-219861"},{"key":"ref50","doi-asserted-by":"publisher","DOI":"10.1186\/s12874-022-01547-3"},{"key":"ref51","unstructured":"Pew Research CenterResearch In The Crowdsourcing Age, A Case Study20242024-03-13https:\/\/www.pewresearch.org\/internet\/2016\/07\/11\/turkers-in-this-canvassing-young-well-educated-and-frequent-users\/"},{"key":"ref52","doi-asserted-by":"publisher","DOI":"10.1177\/2167702612469015"},{"key":"ref53","doi-asserted-by":"publisher","DOI":"10.1016\/j.chbr.2022.100206"}],"container-title":["Interactive Journal of Medical Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.i-jmr.org\/2024\/1\/e58771","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T17:50:56Z","timestamp":1782841856000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.i-jmr.org\/2024\/1\/e58771"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11,11]]},"references-count":53,"URL":"https:\/\/doi.org\/10.2196\/58771","relation":{"has-preprint":[{"id-type":"doi","id":"10.2196\/preprints.58771","asserted-by":"object"}]},"ISSN":["1929-073X"],"issn-type":[{"value":"1929-073X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,11,11]]}}}