High is associated with 3.47 times greater odds of (T2DM).
Sleep duration alone is not independently associated with T2DM risk.
Diagnosed are linked to approximately twofold higher odds of T2DM.
The association between screen exposure and T2DM risk is stronger among females compared to males.
Variation in the screen-T2DM relationship is observed across different sleep characteristics and racial/ethnic groups.
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BACKGROUND: As (T2DM) becomes an increasingly urgent global health concern, interest has grown in how screen-based behaviors contribute to its risk. Excessive is often associated with sedentary lifestyles, poor sleep quality, and circadian disruption-all potential contributors to T2DM. Yet, how screen time interacts with specific sleep characteristics in shaping diabetes risk remains underexplored.
OBJECTIVE: This study investigates the relationship between screen exposure and T2DM risk, with particular focus on sleep duration and diagnosed as potential effect modifiers. We also explored variation by age, sex, and racial/ethnic groups.
METHODS: We analyzed data from 23 023 US adults in the 2007 to 2016 National Health and Nutrition Examination Survey. Screen exposure was dichotomized using age-specific thresholds (≥2 vs <2 hours/day for ages 3 to 18; ≥3 vs <3 hours/day for adults). Type 2 diabetes mellitus was defined by self-reported physician diagnosis. Sleep duration and diagnosed sleep disorders were examined as modifiers. Missing data were handled using multiple imputation by chained equations, and survey-weighted multinomial logistic regression was applied.
RESULTS: High screen exposure was associated with increased odds of T2DM in fully adjusted models (odds ratio [OR] = 3.47, 95% confidence interval [CI]: 2.74, 4.36). Sleep duration was not independently associated with T2DM, whereas sleep disorders were linked to approximately twofold higher odds (OR = 2.21, 95% CI: 1.17, 4.18). The screen-T2DM association was stronger among females than males, with variation observed across sleep and racial/ethnic subgroups.
CONCLUSION: Excessive screen time is linked to elevated T2DM risk, particularly among females and individuals with sleep disorders. Longitudinal research is needed to assess causality and inform targeted interventions.
Key numbers
3.47
Increased Odds of
Odds ratio for associated with high .
2.21
Increased Odds of with
Odds ratio for linked to diagnosed .
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