Association between recruitment methods and attrition in Internet-based studies.

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dc.citation.issue12
dc.citation.volume9
dc.contributor.authorBajardi P
dc.contributor.authorPaolotti D
dc.contributor.authorVespignani A
dc.contributor.authorEames K
dc.contributor.authorFunk S
dc.contributor.authorEdmunds WJ
dc.contributor.authorTurbelin C
dc.contributor.authorDebin M
dc.contributor.authorColizza V
dc.contributor.authorSmallenburg R
dc.contributor.authorKoppeschaar C
dc.contributor.authorFranco AO
dc.contributor.authorFaustino V
dc.contributor.authorCarnahan A
dc.contributor.authorRehn M
dc.contributor.authorMerletti F
dc.contributor.authorDouwes J
dc.contributor.authorFirestone R
dc.contributor.authorRichiardi L
dc.date.available2014-12-09
dc.date.available2014-11-18
dc.date.issued2014
dc.description.abstractInternet-based systems for epidemiological studies have advantages over traditional approaches as they can potentially recruit and monitor a wider range of individuals in a relatively inexpensive fashion. We studied the association between communication strategies used for recruitment (offline, online, face-to-face) and follow-up participation in nine Internet-based cohorts: the Influenzanet network of platforms for influenza surveillance which includes seven cohorts in seven different European countries, the Italian birth cohort Ninfea and the New Zealand birth cohort ELF. Follow-up participation varied from 43% to 89% depending on the cohort. Although there were heterogeneities among studies, participants who became aware of the study through an online communication campaign compared with those through traditional offline media seemed to have a lower follow-up participation in 8 out of 9 cohorts. There were no clear differences in participation between participants enrolled face-to-face and those enrolled through other offline strategies. An Internet-based campaign for Internet-based epidemiological studies seems to be less effective than an offline one in enrolling volunteers who keep participating in follow-up questionnaires. This suggests that even for Internet-based epidemiological studies an offline enrollment campaign would be helpful in order to achieve a higher participation proportion and limit the cohort attrition.
dc.description.publication-statusPublished
dc.format.extent? - ? (13)
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000347515300095&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifierARTN e114925
dc.identifier.citationPLOS ONE, 2014, 9 (12), pp. ? - ? (13)
dc.identifier.doi10.1371/journal.pone.0114925
dc.identifier.elements-id220202
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/10179/11804
dc.languageEnglish
dc.publisherPUBLIC LIBRARY SCIENCE
dc.relation.isPartOfPLOS ONE
dc.subjectScience & Technology
dc.subjectMultidisciplinary Sciences
dc.subjectScience & Technology - Other Topics
dc.subjectINFLUENZA-LIKE-ILLNESS
dc.subjectHEALTH COMMUNICATION
dc.subjectBIRTH COHORT
dc.subjectBEHAVIOR
dc.subjectPARTICIPANTS
dc.subjectNETHERLANDS
dc.subjectEXPERIENCE
dc.subjectPATTERNS
dc.subjectMEDIA
dc.subjectBIAS
dc.titleAssociation between recruitment methods and attrition in Internet-based studies.
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Health
pubs.organisational-group/Massey University/College of Health/Research Centre for Hauora and Health
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