Table 2. Stabilization Status by Age 15¹ Year by Baseline Outdoor Activity²,³.

Baseline Outdoor Activity (hours/week)	Stabilization Status by Age 15* Years						Univariate†		Multivariable‡
	Stable		Not Stable		Total		OR (95% CI)	p-value	OR (95% CI)	p-value
	n	(%)	n	(%)	N	(%)
≤ 9.0*	71	(60.2)	47	(39.8)	118	(100.0)	Reference	-	Reference	-
> 9.0	68	(59.1)	47	(40.9)	115	(100.0)	0.96 (0.57, 1.62)	0.87	0.93 (0.53, 1.65)	0.81
Total	139	(59.7)	94	(40.3)	233	(100.0)	-	-	-	-
Mean hours/wk ± SD	10.8 ± 9.3		9.8 ± 7.0		10.4 ± 8.5		1.02 (0.98, 1.05)	0.36	1.02 (0.99, 1.06)	0.27

¹Age 15 years includes 15.0-15.99, i.e. <16.

²Outdoor activity is based on time spent in outside activities outside of school hours.

³This table is based on all participants with useable (defined as having at least one weekday and one weekend day completed) near work diaries at baseline and an 11-yr Gompertz curve.

^*Based on a median split of the distribution.

^†Based on univariate logistic models, with stabilization status by age 15 years as the dependent variable, and baseline near work (median split or as continuous variable separately) as the independent variable.

^‡Based on multivariable logistic models that included covariates of baseline age (6-9 yrs old vs. 10-11 yrs old) and ethnicity chosen by a stepwise logistic regression model with forward selection using p<0.05 as the criterion for selection. Other variables screened for possibe