Table 1.

Descriptive Statistics

	N	Mean	SD	Min	Max	Mean by Wave
						W1	W2	W3	W4
Current smoker	60857	0.34	0.47	0	1	0.28	0.35	0.35	0.39
Ascriptive variables
Age	61614	20.13	5.51	11	34	15.5	16.0	21.8	28.3
White	75640	0.67	0.47	0	1	0.67
Black	75640	0.16	0.37	0	1	0.16
Hispanic	75696	0.12	0.33	0	1	0.12
Asian	75696	0.04	0.19	0	1	0.04
Native American	75696	0.01	0.09	0	1	0.01
Other & missing	75696	0.01	0.10	0	1	0.01
Female	75696	0.49	0.50	0	1	0.49
Parent educ. <high school	74384	0.21	0.41	0	1	0.21
Parent educ. high school deg	74384	0.22	0.41	0	1	0.22
Parent educ. some college	74384	0.39	0.49	0	1	0.39
Parent educ. college degree	74384	0.18	0.38	0	1	0.18
Parent ever smoked	74868	0.66	0.47	0	1	0.66
Role Measures
In school	61585	0.63	0.48	0	1	0.98	0.91	0.36	0.16
Professional occupation	60744	0.12	0.33	0	1	0	0	0.18	0.33
Not professional occupation	60744	0.43	0.49	0	1	0.34	0.40	0.51	0.48
No occupation	60744	0.45	0.50	0	1	0.66	0.60	0.31	0.19
Living with parents	61558	0.64	0.48	0	1	0.94	0.93	0.43	0.16
Married with kids	61273	0.09	0.29	0	1	0.00	0.00	0.10	0.30
Married without kids	61273	0.05	0.22	0	1	0.00	0.00	0.07	0.13
Not married with kids	61273	0.07	0.26	0	1	0.01	0.02	0.11	0.16
Not married without kids	61273	0.78	0.41	0	1	0.98	0.97	0.72	0.41
Achieved SES
Years of education	61088	11.50	2.73	6	22	9.44	9.93	13.07	14.01
Personal earnings $0–$5000	61615	46.16	0.50	0	1	0.70	0.65	0.33	0.13
Personal earnings $5001–$18223	61615	0.25	0.44	0	1	0.24	0.28	0.32	0.18
Personal earnings $18224+	61615	0.24	0.43	0	1	0.02	0.03	0.30	0.67
Personal earnings missing	61615	0.02	0.12	0	1	0	0	0.04	0.02
Own residence	61535	0.13	0.34	0	1	0	0	0.13	0.42
Controls
Religiosity scale	60969	−0.05	0.89	−1.83	1.29	0.02
Delinquency scale	61333	0.01	1.01	−0.98	24. 57	−0.01
Depression scale	61566	−0.03	1.00	−1.58	6.24	−0.04

Source: National Longitudinal Study of Adolescent Health

Notes: Statistics adjust for weighting.