Table 2

Accelerometer measured activity pattern (minutes per week) by vision status in the NHANES (2003–2006) children and adolescents aged 12–19 years

MaleFemale
Unadjusted β (95% CI)MV-adjusted β (95% CI)*Marginal meanUnadjusted β (95% CI)MV-adjusted β (95% CI)*Marginal mean
Sedentary time
Normal visionRefRef3354.3RefRef3541.5
Uncorrected refractive error−50.9 (−326.4 to 224.5)−101.7 (−362.5 to 159.2)3252.6−63.3 (−257.0 to 130.4)−41.4 (−226.85 to 144.1)3500.1
Visual impairment697.5 (−326.4 to 1721.3)628.5 (−296.6 to 1553.5)3982.7141.5 (−424.5 to 707.5)181.4 (−347.99 to 710.8)3722.9
P trend0.5780.8150.8440.960
Moderate-to-vigorous physical activity
Normal visionRefRef104.8RefRef47.7
Uncorrected refractive error−1.4 (−24.2 to 21.4)−9.1 (−30.0 to 11.8)95.7−4.3 (−19.6 to 11.0)−5.7 (−21.4 to 10.1)42.0
Visual impairment63.9 (−1.2 to 129.1)51.3 (−16.4 to 119.0)156.110.2 (−36.9 to 57.2)7.7 (−36.7 to 52.1)55.4
P trend0.4320.8700.8880.759
  • *MV-adjusted models included age (continuous), BMI, race and household income.

  • BMI, body mass index; MV, multivariate; NHANES, National Health Nutrition and Examinations Survey.