TABLE 2—
Overall and Major and Minor Complication Rates by Provider Type at 22 California Clinical Facilities: August 2007–August 2011
| Physicians (n = 5812) |
NPs–CNMs–PAs (n = 5675) |
Total (n = 11 487) |
Risk Difference Between Provider Groups (n = 11 487) |
||||
| Complication Type | Rate/100 (95% CI) | No. | Rate/100 (95% CI) | No. | Rate/100 (95% CI) | No. | Difference in Rate/100 (95% CI) |
| Major | 0.05 (−0.01, 0.11) | 3 | 0.05 (−0.01, 0.11) | 3 | 0.05 (0.01, 0.09) | 6 | 0.001 (−0.08, 0.09) |
| Minor | 0.84 (0.61, 1.08) | 49 | 1.71 (1.37, 2.05) | 97 | 1.27 (1.07, 1.48) | 146 | 0.87 (0.46, 1.28) |
| Total | 0.89 (0.65, 1.14) | 52 | 1.76 (1.42, 2.10) | 100 | 1.32 (1.11, 1.53) | 152 | 0.87 (0.45, 1.29) |
Note. CI = confidence interval; CNM = certified nurse midwife; NP = nurse practitioner; PA = physician assistant. Physicians had completed a residency in either obstetrics and gynecology or family medicine.