Table 2.

Odds Ratios of FPs Performing Primary Cesarean Sections versus FPs during Obstetrics Deliveries but Not Primary Cesarean Sections

CharacteristicOdds Ratio95% Wald Confidence Limits
Age (ref = 40 to 49)
 Under 400.8670.6391.176
 50 to 590.5430.4050.728
 60 and over0.6590.4500.965
Gender (ref = women)
 Men1.5731.2461.986
Degree Type (ref = MD)
 DO0.9490.6641.355
IMG
 Yes1.7121.1452.560
Race (ref = white)
 Asian1.4740.9002.415
 Black or African American1.6460.8863.056
 Other0.5760.3241.024
Ethnicity
 Hispanic or Latino1.5360.9342.528
Faculty (ref = no)
 Yes, core/salaried faculty0.8290.5511.245
 Yes, volunteer/clinical faculty1.2860.9811.684
Principal Practice Site Size (ref = > 20 providers)
 Solo practice2.0201.0084.046
 2 to 5 providers1.4771.0102.160
 6 to 20 providers1.0420.7731.404
Principal Practice Site Type (ref = hospital/health system owned)
 Independently Owned1.3140.9441.827
 Managed Care/HMO0.2460.0690.882
 Academic Health Center/Faculty Practice0.8230.5231.295
 FQHC or look-alike0.8130.5231.295
 Rural Health Clinic2.1571.3973.330
 Other0.5230.3080.888
Specialty Mix of Practice (ref = family medicine only)
 Primary care specialty mix1.4981.1032.034
 Multiple specialties1.2440.9211.682
Presence of midwife at practice
 Yes2.0871.5132.880
Rurality (ref = urban)
 Micropolitan1.4680.9622.239
 Large Rural2.3081.5773.376
 Small Rural4.0381.8878.642
Census Region (ref = Midwest)
 Northeast0.8440.4991.428
 South4.3113.0306.133
 West1.9331.4312.612
Number of General OB/GYN in county (ref = >5 per 10,000 reproductive age women)
 None2.1631.4403.250
 5 or fewer OB/GYNs1.2240.9281.616
Percentage of reproductive age females in county (ref = 18 to 21%)
 Under 18%1.1160.8021.553
 More than 21%0.6820.5010.929
Primary Care HPSA
 No1.1400.7691.690
Social Deprivation Index (ref = 25 to 75)
 Under 250.7650.5751.017
 More than 751.0220.7231.445
  • Abbreviations: FP, Family Physician; HMO, health maintenance organization; OB/GYN, obstetrician/gynecologist; HPSA, health professional shortage area; FQHC, Federally qualified health center.