Do adolescent sedentary behavior levels predict type 2 diabetes risk in adulthood?

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A study titled “Do adolescent sedentary behavior levels predict type 2 diabetes risk in adulthood?” has recently been published in the BMC Public Health. The full article is available here (open access). A summary of the paper and citation details are re-posted below.

ABSTRACT

Background

The objective was to determine whether time spent in different types of sedentary behavior during adolescence are associated with the risk of developing type 2 diabetes in adulthood.

Methods

Participants were 3942 adolescents aged 16 years who were part of the 1970 British Cohort Study. Sedentary behavior was assessed using a questionnaire that asked participants to indicate how much time they spent watching TV and videos, using the computer, reading, and doing homework. Incident cases of type 2 diabetes were determined quadrennially until 46 years of age. The association between adolescent sedentary behaviors and type 2 diabetes was determined using Cox proportional hazards regression that controlled for sex, body mass index, sugary beverage consumption, smoking status, physical activity at baseline, and physical activity in adulthood .

Results

There were 91 incident cases of type 2 diabetes with an incidence rate of 9 cases/10,000 person-years. By comparison to those who watched TV and videos for 2 or less hours/day, type 2 diabetes risk was not different in those who watched for 2.1–4.0 h/day (HR = 0.89, 95% CI = 0.54, 1.47) but was increased by 2.06-fold (95% CI = 1.24, 3.43) in those who watched for more than 4 h/day. Time spent using a computer, reading, and doing homework were not significantly associated with type 2 diabetes.

Conclusion

Spending more than 4 h/day watching television and videos at age 16 was associated with an increased risk of type 2 diabetes. Conversely, using a computer and non-screen based sedentary behaviors were not associated with type 2 diabetes risk.

Citation

Scandiffio, J.A., Janssen, I. Do adolescent sedentary behavior levels predict type 2 diabetes risk in adulthood?. BMC Public Health 21, 969 (2021). https://doi.org/10.1186/s12889-021-10948-w

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