Characteristics of Prenatal Visits to Office-Based Family Physicians and Obstetricians, 1995–2004 (N = 6,203)
| Proportion of Visits, % | |||
|---|---|---|---|
| Characteristic | Family Physician (n=481) | Obstetrician (n=5,722) | Pvalue |
| ICD-9-CM = International Classification of Diseases, 9th Revision, Clinical Modification. | |||
| a Data available only for 2003 and 2004. | |||
| b Primary diagnosis of supervision of high-risk pregnancy (ICD-9-CM code V23) or complications of pregnancy, childbirth, and the puerperium (ICD-9-CM codes 640–648, 652–556, 658, 658, 671, and 673). | |||
| Age, years | 47.0 | 31.2 | <.01 |
| <24 | 31.6 | 33.6 | <.01 |
| 24–30 | 21.4 | 35.2 | |
| >30 | |||
| Race | 87.8 | 83.0 | .09 |
| White | 7.0 | 11.8 | .09 |
| Black/African American | 5.2 | 5.2 | .39 |
| Asian and other ethnicity | 17.6 | 14.5 | |
| Latino | |||
| Health insurance | 49.3 | 63.9 | <.01 |
| Private | 36.5 | 21.0 | <.01 |
| Medicaid | 4.7 | 2.7 | <.01 |
| Self-pay | 9.5 | 12.4 | |
| Other | 91.5 | 26.7 | |
| Primary care physiciana | 15.5 | 12.9 | .21 |
| High-risk diagnosisb | 17.6 | 7.8 | <.01 |
| Concurrent diagnosis | 17.6 | 7.8 | <.01 |