Change in device-measured physical activity assessed in childhood and adolescence in relation to depressive symptoms: a general population-based cohort study.
Journal of epidemiology and community health
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Hamer, M., Patalay, P., Bell, S., & Batty, G. D. (2020). Change in device-measured physical activity assessed in childhood and adolescence in relation to depressive symptoms: a general population-based cohort study.. Journal of epidemiology and community health, 74 (4), 330-335. https://doi.org/10.1136/jech-2019-213399
Aim: Evidence for a link between physical activity and mental health in young people is hampered by weak evidence. By utilising repeat assessments of device-measured physical activity, we examined the association of within-individual variation in free-living activity over 7 years with depressive symptoms. Methods: This was a prospective cohort study of a nationally representative sample of children born in the UK (n=4,898). Physical activity was quantified using accelerometry at age 7 and age 14. Main outcome was depressive symptoms, based on the Short Moods and Feelings Questionnaire, assessed at age 14. Results: After adjustment for socio-economic status, body mass index, and psychological problems at baseline, higher levels of light intensity activity at age 7 in girls was associated with a lower likelihood of having depressive symptoms at follow up (odds ratio, 0.79; 95% CI, 0.61, 1.00), although no associations were observed for moderate to vigorous activity or sedentary behaviour. Girls who transitioned from low baseline activity to higher levels at follow up experienced a lower risk of depressive symptoms (odds ratio, 0.60; 95% CI, 0.39 – 0.92) compared to the inactive reference category. Null associations were observed in boys. Participants who consistently met the currently recommendation of 60 min-d moderate-vigorous activity at both age 7 and 14 years of age experienced the lowest risk of depressive symptoms (odds ratio, 0.55;95% CI, 0.34, 0.88). Conclusion: To prevent depressive symptoms in adolescence, policies to increase physical activity from mid-childhood may have utility.
Humans, Exercise, Population Surveillance, Cohort Studies, Prospective Studies, Depression, Motor Activity, Psychiatric Status Rating Scales, Social Class, Adolescent, Child, Female, Male, Accelerometry, Surveys and Questionnaires, Sedentary Behavior
Funding: This research was conducted under the auspices of the Cross-Cohort Research Programme and was funded by the Economic and Social Research Council (grant number ES/M008584/1). GDB is supported by the UK Medical Research Council (MR/P023444/1) and the US National Institute on Aging (1R56AG052519-01; 1R01AG052519-01A1). The funders had no role in the study design; in the collection, analysis and interpretation of data; in writing of the report; or in the decision to submit the paper for publication.
British Heart Foundation (RG/13/13/30194)
British Heart Foundation (RG/18/13/33946)
External DOI: https://doi.org/10.1136/jech-2019-213399
This record's URL: https://www.repository.cam.ac.uk/handle/1810/299893
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