TABLE 3—

Distribution of Age at Migration and Years of Residence in the United States, by Gender, Among Mexican-Born Never Smokers and Mexican-Born Ever Smokers Who Initiated Smoking in the United States

	Men			Women
Characteristic	Never (n = 415)	Ever (n = 119)	P	Never (n = 2192)	Ever (n = 147)	P
Age at migration, y
≤15, no. (%)	70 (16.9)	61 (51.3)		306 (14.0)	68 (46.3)
16–25, no. (%)	195 (47.0)	50 (42.0)		995 (45.4)	49 (33.3)
≥26, no. (%)	150 (36.1)	8 (6.7)		891 (40.6)	30 (20.4)
Mean (SD)	23.4 (11.0)	14.6 (7.5)	<.001	25.1 (11.3)	17.5 (10.8)	<.001
Residence in US, y
≤12, no. (%)	176 (42.4)	28 (23.5)		1139 (52.0)	35 (23.8)
≥13, no. (%)	239 (57.6)	91 (76.5)		1054 (48.0)	112 (76.2)
Mean (SD)	18.0 (12.9)	26.1 (15.7)	.05	15.4 (12.0)	24.0 (13.5)	<.001