Table 4.

Interpregnancy interval and pregnancy outcomes among Coloradan adolescent women with a last live birth between 2004 and 2013

Pregnancy outcomes (dependent variables of individual logistic regressions)
	Overweight/obese AOR (CI)	Maternal complications AOR (CI)	Neonatal complications AOR (CI)	Cesarean section AOR (CI)	Birthweight >2,500 g AOR (CI)	Gestational age >37 wk AOR (CI)	Attending ≥14 PNVs AOR (CI)
IPI >18 mo	.9 (.8–.9)	.9 (.6–1.0)	.9 (.8–.9)	1.0 (.9–1.1)	1.2 (1.1–1.4)	1.3 (1.1–1.4)	1.3 (1.2–1.4)
Age 17–19y	1.3 (1.1–1.5)	.7 (.4–1.1)	.9 (.7–1.1)	1.2(1.0–1.5)	1.4 (1.2–1.4)	1.4 (1.1–1.7)	1.1 (.9–1.4)
Hispanic	1.8 (1.7–2.0)	.6 (.5–.8)	.7 (.6–.8)	.8 (.7–.9)	1.2 (1.1–1.4)	1.4 (1.1–1.3)	1.1 (1.0–1.2)
Medicaid insurance	.6 (.5–.6)	1.4 (1.1–1.9)	1.6 (1.4–1.8)	1.0 (.9–1.1)	1.0 (.9–1.1)	1.0 (.9–1.1)	1.0 (.9–1.1)
Year of last live birth in or after 2009 (CFPI)	.9 (.8–.9)	.6 (.4–.8)	.4 (.4–.5)	1.0 (.8–1.1)	1.0 (.9–1.1)	1.0 (.9–1.1)	1.3 (1.2–1.5)

Numbers in bold are statistically significant to p < .05.

AOR = adjusted odds ratio; CFPI = Colorado Family Planning Initiative; CI = confidence interval.