Table 5.

Moderation effect of family poverty.

Predictors	Physical activity				Depressive symptoms
	Unstandardized			Standardized	Unstandardized			Standardized
	b		[95% CI]	β	b		[95% CI]	β
Level 2
Fine particulate matter	−0.05	**	[-0.08, −0.01]	−0.06	0.00		[-0.01, 0.01]	0.02
Level 1
Poverty	0.36		[-0.52, 1.24]	0.01	0.09		[-0.15, 0.33]	0.04
Fine particulate $\times$Family poverty	−0.03		[-0.09, 0.04]	−0.03	−0.00		[-0.02, 0.01]	−0.02
Physical activity	-			-	−0.02	**	[-0.02, −0.01]	−0.05
Physical activity$\times$Family poverty	-			-	−0.01		[-0.02, 0.02]	−0.00
Covariates
Girl	−0.46	***	[-0.60, −0.33]	−0.21	0.21	***	[0.17, 0.24]	0.33
(Elementary school child = 0)
Middle school child	−0.39	***	[-0.58, −0.21]	−0.18	0.19	***	[0.14, 0.24]	0.31
High school child	−0.71	***	[-0.90, −0.51]	−0.32	0.24	***	[0.19, 0.29]	0.39
Self-reported grades at school	−0.04	*	[-0.07, −0.00]	−0.03	−0.06	***	[-0.07, −0.05]	−0.21
(Mother is a primary caregiver = 0)
Father is a primary caregiver	0.07		[-0.12, 0.25]	0.03	−0.01		[-0.06, 0.04]	−0.02
Other person is a primary caregiver	0.74		[-0.22, 1.70]	0.33	−0.03		[-0.29, 0.23]	−0.05
Primary caregiver's age	0.01		[-0.01, 0.03]	0.02	0.01	*	[0.00, 0.01]	0.04
Primary caregiver is married	−0.08		[-0.30, 0.14]	−0.04	−0.01		[-0.07, 0.05]	−0.02
Number of family member	0.01		[-0.07, 0.09]	0.00	−0.01		[-0.03, 0.01]	−0.02
Primary caregiver has a college degree	−0.08		[-0.22, 0.06]	−0.04	0.02		[-0.02, 0.05]	0.03
Primary caregiver is a homeowner	−0.10		[-0.24, 0.05]	−0.04	−0.02		[-0.06, 0.02]	−0.04
(Live in urban area = 0)
Live in suburban area	0.20		[-0.00, 0.40]	0.09	0.04		[-0.02, 0.09]	0.06
Live in rural area	0.04		[-0.20, 0.27]	0.02	0.05		[-0.01, 0.12]	0.08
Neighborhood poverty rate	−0.10		[-0.23, 0.03]	−0.03	−0.02		[-0.06, 0.01]	−0.02
ICC	0.015				0.018

*p < .05; **p < .01, ***p < .001.