Table 1.
Characteristics of sample compared with women 18 years and older from the 1990 US census. Values are numbers (percentages) unless stated otherwise
| Characteristic | Patients (n=479) | 1990 US census (%) |
|---|---|---|
| Age (years): | ||
| 18-39 | 120 (25) | 46 |
| 40-49 | 153 (32) | 16 |
| 50-69 | 158 (33) | 24 |
| ⩾70 | 48 (10) | 14 |
| Ethnicity: | ||
| White | 431 (90) | 78 |
| African-American | 19 (4) | 11 |
| Hispanic | 10 (2) | 7 |
| Other | 19 (4) | 4 |
| Household income ($): | ||
| <10 000 | 24 (5) | 13 |
| 10 000-24 999 | 86 (18) | 24 |
| 25 000-49 999 | 158 (33) | 33 |
| 50 000-99 999 | 163 (34) | 22 |
| ⩾100 000 | 48 (10) | 8 |
| Highest level of education: | ||
| < High school graduate | 29 (6) | 25 |
| High school degree | 268 (56) | 53 |
| College degree | 139 (29) | 17 |
| Postgraduate degree | 43 (9) | 5 |
| Region: | ||
| North east | 67 (14) | 21 |
| Midwest | 115 (24) | 24 |
| South | 153 (32) | 35 |
| West | 144 (30) | 20 |
95% confidence intervals ranged from 4% to 6% in either direction for all percentages.