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Do children ’s expectations about future physical activity predict their physical activity in adulthood?
ConclusionsThis study offers a novel approach for analysing large qualitative datasets to assess identity and behaviours. Findings suggest that at as young as 11  years old, the way a young person conceptualizes activity as part of their identity has a lasting association with behaviour. Still, an active identity may require a supportive sociocultural context to manifest in subsequent behaviour. (Source: International Journal of Epidemiology)
Source: International Journal of Epidemiology - October 4, 2020 Category: Epidemiology Source Type: research

Corrigendum to: Is mode of transport to work associated with mortality in the working-age population? Repeated census-cohort studies in New Zealand, 1996, 2001 and 2006
The Table in the Supplementary data failed to identify the source of the population in question. The footnote to that table has been amended to clarify this. (Source: International Journal of Epidemiology)
Source: International Journal of Epidemiology - October 3, 2020 Category: Epidemiology Source Type: research

Can synthetic controls improve causal inference in interrupted time series evaluations of public health interventions?
AbstractInterrupted time series designs are a valuable quasi-experimental approach for evaluating public health interventions. Interrupted time series extends a single group pre-post comparison by using multiple time points to control for underlying trends. But history bias —confounding by unexpected events occurring at the same time of the intervention—threatens the validity of this design and limits causal inference. Synthetic control methodology, a popular data-driven technique for deriving a control series from a pool of unexposed populations, is increasingly r ecommended. In this paper, we evaluate if and when syn...
Source: International Journal of Epidemiology - October 2, 2020 Category: Epidemiology Source Type: research

Accumulation of childhood adversities and type 1 diabetes risk: a register-based cohort study of all children born in Denmark between 1980 and 2015
ConclusionsIn an unselected total population sample, we generally find no or negligible effects of childhood adversities on type 1 diabetes risk, which may be reassuring to persons with type 1 diabetes who are concerned that personal trauma contributed to their disease. There is a very small group of females exposed to a high degree of adversity who may have a higher risk of type 1 diabetes and this group needs further attention. (Source: International Journal of Epidemiology)
Source: International Journal of Epidemiology - October 2, 2020 Category: Epidemiology Source Type: research