Table 3.

Weighted Adjusted National Estimates of Prevalence of Chronic Conditions per 1,000 Delivery Hospitalizations (95% CI)^*

Condition	2005–2006	2007–2008	2009–2010	2011–2012	2013–2014	P for Trend
Any one condition	66.9 (63.0–70.8)	72.5 (69.0–76.0)	77.3 (73.3–81.3)	82.8 (79.9–85.6)	91.8 (90.0–93.6)	<.001
Multiple conditions	4.7 (4.2–5.2)	5.3 (4.8–5.8)	6.3 (5.8–6.9)	7.0 (6.6–7.4)	8.1 (7.8–8.4)	<.001
Asthma	24.2 (22.1–26.3)	29.4 (27.4–31.4)	32.7 (30.4–35.1)	36.0 (34.3–37.8)	40.0 (38.9–41.2)	<.001
Chronic hypertension	15.8 (15.0–16.7)	17.6 (16.6–18.6)	20.5 (19.4–21.6)	22.2 (21.4–23.0)	23.6 (23.1–24.2)	<.001
Substance use disorders	12.9 (11.5–14.3)	12.8 (11.8–13.9)	13.4 (12.2–14.6)	15.2 (14.3–16.0)	19.6 (18.8–20.4)	<.001
Pre-existing diabetes	8.6 (8.0–9.2)	8.8 (8.3–9.4)	9.6 (9.0–10.2)	9.9 (9.5–10.3)	10.3 (10.0–10.6)	<.001
Chronic heart disease	7.2 (6.6–7.8)	5.9 (5.4–6.3)	4.1 (3.8–4.4)	3.3 (3.1–3.5)	3.1 (3.0–3.2)	<.001
Chronic renal disease	2.0 (1.9–2.1)	2.3 (2.2–2.5)	2.6 (2.4–2.7)	2.7 (2.5–2.8)	2.9 (2.8–3.0)	<.001
HIV	0.98 (0.81–1.2)	1.0 (0.74–1.3)	1.0 (0.82–1.3)	0.84 (0.70–0.97)	0.87 (0.78–0.95)	0.48
Chronic liver disease	0.18 (0.15–0.21)	0.21 (0.18–0.24)	0.28 (0.24–0.31)	0.35 (0.30–0.39)	0.37 (0.34–0.41)	<.001

^*Adjusted for age, payer, rural vs. urban residence, and national income quartile for ZIP Code of residence