Table 4. Percentage of Perforation and Time to Treatment by Clinical and Demographic Groups.
| Characteristic | Perforation, % | Presentation to OR Time | Observations, No. | |
|---|---|---|---|---|
| Mean (SD) | Median | |||
| Sex | ||||
| Male | 17.3 | 8.2 (6.2) | 6.5 | 3847 |
| Female | 15.5 | 9.0 (6.8) | 7.1 | 3479 |
| Age distribution, y | ||||
| 18-29 | 8.4 | 9.0 (6.8) | 7.2 | 2600 |
| 30-39 | 11.3 | 8.3 (5.9) | 6.7 | 1520 |
| 40-49 | 17.7 | 7.9 (5.7) | 6.4 | 1180 |
| 50-59 | 24.7 | 8.3 (6.2) | 6.5 | 1004 |
| 60-69 | 31.5 | 8.4 (6.6) | 6.3 | 625 |
| ≥70 (max = 97) | 36.1 | 10.0 (8.8) | 7.0 | 399 |
| Comorbidity index score | ||||
| 0 | 15.4 | 8.4 (6.2) | 6.7 | 6308 |
| 1 | 20.5 | 9.4 (7.9) | 6.9 | 814 |
| 2 | 28.0 | 9.9 (7.5) | 7.6 | 143 |
| ≥3 | 43.4 | 11.1 (9.0) | 8.1 | 63 |
| Race | ||||
| White | 16.6 | 8.4 (6.4) | 6.6 | 5202 |
| African American | 11.7 | 11.2 (8.9) | 8.3 | 198 |
| Asian | 13.4 | 8.8 (5.8) | 7.4 | 370 |
| American Indian/Alaskan | 21.6 | 8.2 (6.7) | 6.5 | 61 |
| Hawaiian/Pacific Islander | 9.6 | 10.9 (8.7) | 7.8 | 47 |
| Unknown | 17.3 | 8.7 (6.3) | 6.9 | 1450 |
| Ethnicity | ||||
| White, non-Hispanic | 16.8 | 8.4 (6.5) | 6.6 | 4720 |
| White, Hispanic | 15.4 | 8.4 (5.9) | 6.8 | 615 |
| Minority, non-Hispanic | 13.4 | 9.6 (7.2) | 7.6 | 670 |
| Minority, Hispanic | 22.2 | 6.2 (2.4) | 6.7 | 6 |
| Unknown race | 17.2 | 8.6 (6.3) | 6.9 | 1317 |
| Insurance | ||||
| Private | 14.3 | 8.1 (6.0) | 6.5 | 4372 |
| Medicare | 34.4 | 9.6 (8.3) | 6.8 | 585 |
| Medicaid | 16.4 | 9.4 (7.2) | 7.2 | 648 |
| Uninsured, self-pay, unknown |
16.4 | 9.0 (6.7) | 7.0 | 1466 |
| Other government program | 12.0 | 9.1 (5.9) | 7.8 | 257 |