Table 2.

Linear regression models for the proportion of in-camp time spent at play or childcare and domestic activities.

	Model 1: Play		Model 2: Childcare and domestic activities		Model 3: Childcare and domestic activities
	Coefficient (SE)	P value	Coefficient (SE)	P value	Coefficient (SE)	P value
Age	−0.01 (0)	<0.001	0.01 (0.00)	<0.001	0.01 (0)	<0.001
Sex (male)	0.1 (0.03)	<0.01	−0.07 (0.02)	<0.001	0.05 (0.03)	0.10
Age * Sex (male)					−0.01 (0)	<0.001
N	96		96		96
Adjusted R-squared	0.18		0.27		0.42

Including the Age * Sex interaction term significantly increased the model fit (for Models 2–3: P[χ²₁ > 24.24] < 0.001). Coefficient is the regression coefficient obtained from the model, and SE is its standard error.