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Table 2 Prenatal visit characteristics of hospital outpatient departments and obstetrician's offices, 1997–2004 (n = 21,454)

From: Trends in prenatal cares settings: association with medical liability

Characteristic Proportion of visits in
Hospital outpatient departments, %
Proportion of visits in
Obstetrician's offices, %
Adjusted* OR with (95% CI)
Age, years    
   < 23 38 22 1.00
   23–28 31 32 .91 (.76 – 1.10)
   > 28 31 46 .89 (.73 – 1.07)
Latino ethnicity 22 12 1.76 (1.28 – 2.42)
Race    
   White 61 83 1.00
   African American 33 12 2.87 (2.04 – 4.05)
   Asian and other 6 5 1.67 (1.07 – 2.61)
Insurance    
   Private 22 69 1.00
   Medicaid 56 21 6.06 (4.40 – 8.34)
   Self-pay 10 3 11.08 (6.74 – 18.22)
   Other 12 7 4.97 (3.20 – 7.73)
Obstetrical Complication 24 12 1.69 (1.21 – 2.37)
New patient 11 5 1.86 (1.36 – 2.55)
  1. Abbreviations: OR, odds ratio; CI, confidence interval.
  2. Dependent variable: hospital outpatient department visit.
  3. *Odds Ratio adjusted for all other listed variables.