Teun Remmers

Daily weather and children's PA patterns | 93 Table 2: Relationship between weather elements and physical activity ( n =4599 days, n =307 children) Moderate PA std. B (95%CI) Vigorous PA std. B (95% CI) -2 restricted log likelihood = 10834 -2 restricted log likelihood = 10759 Rainfall (0.01–7.8 mm per day versus no rainfall) Rainfall (7.9–46.0 mm per day versus no rainfall) 0.087 (0.029 to 0.145) 0.062 (0.005 to 0.119) -0.065 (-0.152 to 0.022) -0.007 (-0.093 to 0.078) Humidity -0.070 (-0.108 to 0.033) -0.085 (-0.122 to -0.048) Day length -0.050 (-0.177 to 0.076) -0.079 (-0.202 to 0.044) Temperature 0.378 (0.177 to 0.579) 0.108 (-0.089 to 0.304) Temperature squared -0.484 (-0.665 to -0.302) -0.297 (-0.474 to -0.120) Solar Radiation exposure 0.079 (0.037 to 0.121) 0.065 (0.024 to 0.106) Day type (weekday versus weekend day) 0.438 (0.380 to 0.496) 0.333 (0.276 to 0.389) Gender (boys versus girls) 0.523 (0.410 to 0.636) 0.531 (0.397 to 0.665) Age in years -0.118 (-0.178 to -0.058) -0.051 (-0.122 to 0.019) Body Mass Index 0.026 (-0.026 to 0.079) -0.107 (-0.168 to -0.046) Table shows fixed effects (as standardized regression coefficients (std. B) with 95% confidence intervals (CI) from linear mixed models, with a random intercept for each child, and a repeated term for each child across each repeated observation, with autoregressive covariance structure. Bolded text indicates significant at p<0.05.