2006
DOI: 10.1111/j.1467-842x.2006.tb00849.x
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Attrition in longitudinal studies: who do you lose?

Abstract: Objective: To describe the risk factors for various types of attrition in three age cohorts of women in a longitudinal study and to discuss strategies to minimise attrition. Methods: Analysis of survey data from the Australian Longitudinal Study on Women's Health, collected by mailed questionnaire. In 1996, the study recruited and surveyed a national random sample of ‘younger’ (18–23 years, n=14,247), ‘mid‐age’ (45–50 years, n=13,716), and ‘older’ women (70–75 years, n=12,432), and began a staggered cycle of … Show more

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Cited by 292 publications
(286 citation statements)
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“…The ALSWH included fairly representative national samples of women responding at baseline, [26] but as with all prospective studies, women have withdrawn over time, with more healthy women remaining in the study. [28] Therefore, our findings cannot be generalized to all Australian women in their 50s-80s.…”
Section: Discussionmentioning
confidence: 65%
See 1 more Smart Citation
“…The ALSWH included fairly representative national samples of women responding at baseline, [26] but as with all prospective studies, women have withdrawn over time, with more healthy women remaining in the study. [28] Therefore, our findings cannot be generalized to all Australian women in their 50s-80s.…”
Section: Discussionmentioning
confidence: 65%
“…Women lost to follow-up after 1996 were more likely to report poorer health, less education, and being born in a non-English-speaking country than those who continued in ALSWH. [28] We excluded an additional 207 women in …”
Section: Study Samplesmentioning
confidence: 99%
“…While selfreport measures are appropriate for large scale surveillance, 57 the strength of the associations may have been underestimated, as recall of unstructured behaviors like sitting-time can be difficult. Although ALSWH participants were representative of mid-aged Australian women in 1996, 32 women with lower socioeconomic status and worse health were more likely to drop out from the study, 58 which may affect the generalizability of results.…”
Section: Discussionmentioning
confidence: 99%
“…In general, their health was slightly better than those who were lost to follow-up. 30 Descriptive data relating to BMI, PA, smoking, alcohol, education and area of residence for the analysis sample are shown in Table 1. Fewer than half the women were in the healthy BMI category (44.3%) or sufficiently active for health benefit (46.2%).…”
Section: Resultsmentioning
confidence: 99%