Table 4.

Caregiver’s smoking behavior changes and children’s urine cotinine levels.

Variables	n (%)	Mean ± SD	t	p
Decrease of cigarettes smoked by caregivers in presence of children (number of cigarettes/week) a
≤1.42	34 (52.3)	0.01 ± 0.58	−2.903	0.005
>1.42	31 (47.7)	0.40 ± 0.48
Self-reported 7-day quit rates
Yes	11 (16.9)	0.65 ± 0.61	3.081	0.003
No	54 (83.1)	0.11 ± 0.51
Self-reported 24-h quit rates
Yes	13 (20.0)	0.45 ± 0.46	−1.089	0.280
No	52 (80.0)	0.24 ± 0.59

^a Geometric mean.