ArticleInjury prevention : journal of the International Society for Child and Adolescent Injury Prevention2014
Estimating bias from loss to follow-up in a prospective cohort study of bicycle crash injuries.
Article in Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Loss to 5-year follow-up in the population-based Telemark Study: risk factors and potential for bias.BMJ open · 2023Article
- Emergency department consultations for respiratory symptoms revisited: exploratory investigation of longitudinal trends in patients' perspective on care, health care utilization, and general and mental health, from a multicenter study in Berlin, Germany.BMC health services research · 2022Article
- Bias estimation in study design: a meta-epidemiological analysis of transcatheter versus surgical aortic valve replacement.BMC surgery · 2021Article
- Electronic Cigarette Use and Smoking Initiation in Taiwan: Evidence from the First Prospective Study in Asia.International journal of environmental research and public health · 2019Article
- The influence of stunting on obesity in adulthood: results from the EPIPorto cohort.Public health nutrition · 2018Article
- Impact of participant attrition on child injury outcome estimates: a longitudinal birth cohort study in Australia.BMJ open · 2017Article
- Loss to follow-up and HIV incidence in female sex workers in Kaiyuan, Yunnan Province China: a nine year longitudinal study.BMC infectious diseases · 2016Article
- Using linkage to electronic primary care records to evaluate recruitment and nonresponse bias in the Avon Longitudinal Study of Parents and Children.Epidemiology (Cambridge, Mass.) · 2015Article
- Sample attrition rate of a community study: An analysis of Lucknow urban and rural elderly follow-up over a period of 9 years.Indian journal of psychiatryArticle
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Authors and funding
3 authors.
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Abstract
backgroundLoss to follow-up, if related to exposures, confounders and outcomes of interest, may bias association estimates. We estimated the magnitude and direction of such bias in a prospective cohort study of crash injury among cyclists.
methodsThe Taupo Bicycle Study involved 2590 adult cyclists recruited from New Zealand's largest cycling event in 2006 and followed over a median period of 4.6 years through linkage to four administrative databases. We resurveyed the participants in 2009 and excluded three participants who died prior to the resurvey. We compared baseline characteristics and crash outcomes of the baseline (2006) and follow-up (those who responded in 2009) cohorts by ratios of relative frequencies and estimated potential bias from loss to follow-up on seven exposure-outcome associations of interest by ratios of HRs.
resultsOf the 2587 cyclists in the baseline cohort, 1526 (60%) responded to the follow-up survey. The responders were older, more educated and more socioeconomically advantaged. They were more experienced cyclists who often rode in a bunch, off-road or in the dark, but were less likely to engage in other risky cycling behaviours. Additionally, they experienced bicycle crashes more frequently during follow-up. The selection bias ranged between -10% and +9% for selected associations.
conclusionsLoss to follow-up was differential by demographic, cycling and behavioural risk characteristics as well as crash outcomes, but did not substantially bias association estimates of primary research interest.
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