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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Matern Child Health J. 2015 Mar;19(3):635–642. doi: 10.1007/s10995-014-1553-5

Table 2.

Prevalence for hospital deliveries with diabetes (per 100 deliveries), by maternal age, urban/rural location of hospital, expected primary payer, median household income of patient’s ZIP Code, and type of delivery, United States, Healthcare Cost and Utilization Project Nationwide Inpatient Sample, 2009

Any diabetes
Prevalencea (95 % CIb)
Pre-existing diabetes
Prevalence (95 % CI)
Gestational diabetes
Prevalence (95 % CI)
Overall 6.47 (6.17, 6.77) 0.90 (0.83, 0.98) 5.57 (5.31, 5.84)
U.S. Census region in which hospital is located
  Northeast 6.13 (5.55, 6.76) 0.73 (0.62, 0.86) 5.40 (4.85, 6.00)
  Midwest 6.26 (5.53, 7.09) 0.79 (0.66, 0.95) 5.47 (4.81, 6.23)
  South 6.58 (6.10, 7.10) 1.04 (0.92, 1.19) 5.53 (5.13, 5.97)
  West 6.71 (6.23, 7.22) 0.88 (0.75, 1.04) 5.82 (5.40, 6.28)
Age group
  15–19 years 1.78 (1.65, 1.93) 0.32 (0.28, 0.38) 1.46 (1.35, 1.58)
  20–24 3.54 (3.38, 3.71) 0.55 (0.49, 0.61) 2.99 (2.85, 3.14)
  25–29 5.96 (5.69, 6.23) 0.81 (0.74, 0.89) 5.14 (4.91, 5.38)
  30–34 8.50 (8.03, 9.00) 1.13 (1.03, 1.25) 7.37 (6.96, 7.80)
  35–39 11.67 (10.90, 12.49) 1.60 (1.42, 1.80) 10.07 (9.43, 10.76)
  40–44 15.47 (14.43, 16.58) 2.04 (1.76, 2.38) 13.43 (12.53, 14.39)
Patient’s county of residence
  Central 6.72 (6.05, 7.46) 0.93 (0.79, 1.08) 5.80 (5.21, 6.44)
  Fringe 6.20 (5.86, 6.55) 0.75 (0.67, 0.83) 5.45 (5.14, 5.79)
  Small metro 6.66 (6.26, 7.09) 0.99 (0.88, 1.10) 5.68 (5.33, 6.04)
  Rural 6.24 (5.93, 6.57) 1.07 (0.96, 1.20) 5.17 (4.91, 5.45)
Primary payer
  Private 5.84 (5.56, 6.13) 0.73 (0.68, 0.79) 5.11 (4.85, 5.38)
  Medicaid/Medicare 7.78 (7.37, 8.22) 1.26 (1.14, 1.40) 6.52 (6.17, 6.89)
  Uninsured 7.31 (6.09, 8.77) 0.79 (0.61, 1.01) 6.53 (5.40, 7.88)
  Other public insurance 5.90 (5.24, 6.63) 0.89 (0.70, 1.13) 5.01 (4.47, 5.61)
Median household income of patient’s ZIP Code
  ≥ $39,000 6.25 (5.96, 6.55) 0.80 (0.74, 0.88) 5.45 (5.19, 5.72)
  < $39,000 (lowest quartile) 7.18 (6.71, 7.69) 1.26 (1.15, 1.37) 5.92 (5.51, 6.36)
Type of delivery
  Vaginal 5.21 (4.92, 5.52) 0.50 (0.44, 0.56) 4.71 (4.46, 4.99)
  C-section 8.81 (8.46, 9.17) 1.65 (1.52, 1.80) 7.16 (6.87, 7.46)
a

Prevalence data are age-standardized to the 2009 population of deliveries

b

CI Confidence Interval