Table 2:

Health care use during one year of follow-up among postpartum and nonpostpartum women of reproductive age

	All postpartum women N=149,563	Nonpostpartum women N=2,048,831	Difference (unadjusted) N=2,198,394	Difference (adjusted) N=2,198,394
	Percent	Percent	Coefficient (95% CI)	Coefficient (95% CI)
Early postpartum (<21 days)
Preventive visits	15.0	3.3	11.7*** (11.6–11.8)	11.6*** (11.5–11.7)
Problem visits	23.7	19.7	4.0*** (3.8–4.3)	4.8*** (4.6–5.0)
ED visits	3.2	1.0	2.2*** (2.1–2.3)	2.3*** (2.2–2.4)
Hospitalization	0.8	0.1	0.7*** (0.6–0.7)	0.7*** (0.7–0.7)
Postpartum (21–60 days)
Preventive visits	28.2	6.5	21.6*** (21.5–21.8)	21.4*** (21.3–21.5)
Problem visits	39.4	30.2	9.2*** (8.9–9.4)	10.2*** (9.9–10.4)
ED visits	2.0	1.9	0.1** (0.0–0.2)	0.3*** (0.2–0.4)
Hospitalization	0.3	0.2	0.0 (−0.0–0.0)	0.1*** (0.0–0.1)
Extended postpartum (day 61–365)
Preventive visits	42.5	42.7	−0.3* (−0.5,−0.0)	−1.8*** (−2.1,−1.5)
Problem visits	79.5	72.8	6.6*** (6.4–6.9)	6.5*** (6.2–6.7)
ED visits	11.2	11.1	0.2 (−0.0–0.3)	1.1*** (0.9–1.2)
Hospitalization	1.4	1.6	−0.2*** (−0.2,−0.1)	0.1** (0.0–0.2)

NOTE: Preventive visits were visits with any diagnosis code for a preventive office visit (99381–99397), encounter for general adult medical examination (Z00.00, Z00.01), well woman exam (Z01.411, Z01.419), or postpartum care (Z39.1, Z39.2). Problem visits were visits without any preventive codes. Adjusted regression models included age group (18–24 years, 25–34 years, and 34–44 years), chronic disease (diabetes, asthma, hypertension, mood or anxiety disorder, region (Northwest, West, South, Midwest), income and month when follow-up began.

^*p<0.05,

^**p<0.01

^***p<0.001