Table 5.

Logistic Regression Estimates of 4-Year College Dropout Without a Degree (n = 2,605 Individuals, 96,871 Person-Months)

	Model 1			Model 2			Model 3			Model 4
Variables	B	SE	OR	B	SE	OR	B	SE	OR	B	SE	OR
Male	0.09	0.06	1.09	0.11	0.06	1.12	0.10	0.06	1.11	0.14*	0.06	1.15
Age at first sex (ref.: 16 and below)
17, Prior to college enrollment	−0.24**	0.09	0.79	−0.25**	0.09	0.78	−0.24**	0.09	0.79	−0.24**	0.09	0.79
No sex before college enrollment	−0.43***	0.09	0.65	−0.41***	0.09	0.66	−0.38***	0.09	0.68	−0.38***	0.09	0.68
Fertility expectationsa	0.04*	0.02	1.04	0.03*	0.02	1.03	0.03	0.02	1.03	0.03	0.02	1.03
Marriage							0.59***	0.17	1.80	0.60***	0.17	1.83
Cohabitation							0.35**	0.13	1.42	0.35**	0.13	1.42
Pregnancy				0.75***	0.14	2.13	0.51***	0.15	1.67	0.74***	0.17	2.09
Employment (ref.: no work)
Less than 20 hours per week on average							−0.12	0.09	0.88	−0.12	0.09	0.88
20 and less than 35 hours per week on
average							−0.10	0.09	0.90	−0.09	0.09	0.91
35 and Above							0.46***	0.08	1.58	0.46***	0.08	1.59
Male × (partner) pregnancy										−0.78*	0.31	0.46
Hazard rate of no enrollment in 4-year college	−0.46	0.28	0.63	−0.48	0.28	0.62	−0.49	0.28	0.61	−0.50	0.28	0.61
Constant	−5.41***	0.94		−5.18***	0.94		−4.90***	0.94		−4.95***	0.94
χ 2		1,200.53			1,225.72			1,303.37			1310.24
df		92			93			98			99

Note: Controls are month, race/ethnicity, parent’s education, family structure, highest math, high school GPA, age at first enrollment, and missing flags (data omitted from the table). OR = odds ratio; ref. = reference.

^aFertility expectations are scaled so that the coefficient represents the estimated impact of a 10% point change in the perceived probability of becoming a parent by age 20.

^*p < .05.

^**p < .01.

^***p < .001.