Identifying patterns of item missing survey data using latent groups: an observational study

Barnett, Adrian G, McElwee, Paul, Nathan, Andrea, Burton, Nicola W and Turrell, Gavin 2017, Identifying patterns of item missing survey data using latent groups: an observational study, BMJ open, vol. 7, no. 10, pp. 1-9, doi: 10.1136/bmjopen-2017-017284.

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Title Identifying patterns of item missing survey data using latent groups: an observational study
Author(s) Barnett, Adrian G
McElwee, Paul
Nathan, Andrea
Burton, Nicola W
Turrell, GavinORCID iD for Turrell, Gavin orcid.org/0000-0002-3576-8744
Journal name BMJ open
Volume number 7
Issue number 10
Article ID e017284
Start page 1
End page 9
Total pages 9
Publisher BMJ Publishing Group
Place of publication London, Eng.
Publication date 2017-10-30
ISSN 2044-6055
Keyword(s) Epidemiology
Public health
Science & Technology
Life Sciences & Biomedicine
Medicine, General & Internal
General & Internal Medicine
Summary OBJECTIVES: To examine whether respondents to a survey of health and physical activity and potential determinants could be grouped according to the questions they missed, known as 'item missing'. DESIGN: Observational study of longitudinal data. SETTING: Residents of Brisbane, Australia. PARTICIPANTS: 6901 people aged 40-65 years in 2007. MATERIALS AND METHODS: We used a latent class model with a mixture of multinomial distributions and chose the number of classes using the Bayesian information criterion. We used logistic regression to examine if participants' characteristics were associated with their modal latent class. We used logistic regression to examine whether the amount of item missing in a survey predicted wave missing in the following survey. RESULTS: Four per cent of participants missed almost one-fifth of the questions, and this group missed more questions in the middle of the survey. Eighty-three per cent of participants completed almost every question, but had a relatively high missing probability for a question on sleep time, a question which had an inconsistent presentation compared with the rest of the survey. Participants who completed almost every question were generally younger and more educated. Participants who completed more questions were less likely to miss the next longitudinal wave. CONCLUSIONS: Examining patterns in item missing data has improved our understanding of how missing data were generated and has informed future survey design to help reduce missing data.
Language eng
DOI 10.1136/bmjopen-2017-017284
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2017, Article author(s)
Persistent URL http://hdl.handle.net/10536/DRO/DU:30117470

Document type: Journal Article
Collections: School of Health and Social Development
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