Table 3.

Odds of depressive symptoms in 2001 per hour of physical activity (results of multivariable logistic regression analysis).

	Boys, N = 1,195			Girls, N = 1,269
	OR	95% CI (P value)	Wald P valuea	OR	95% CI (P value)	Wald P value
Crude odds	0.92	0.87 to 0.97 (0.003)		0.94	0.88 to 1.01 (0.087)
Adjusted for general health/long-standing illness	0.92	0.87 to 0.98 (0.011)	0.0001	0.95	0.89 to 1.02 (0.180)	0.0004
Adjusted for general health/long-standing illness and health behaviours	0.92	0.85 to 0.99 (0.023)	0.0275	0.92	0.85 to 1.00 (0.044)	0.0003

^aTest for improvement in model fit.

OR = odds ratio.