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Characteristics of patients analyzed by hospital volume
| Characteristics | Hospital volume | |||
|---|---|---|---|---|
| High | Medium | Low | Very low | |
| No. patients | 810 | 1281 | 1192 | 1050 |
| Mean age | ||||
| Years | 48.4 | 48.0 | 48.3 | 48.3 |
| 90% confidence interval | 47.8–48.9 | 47.5–48.4 | 47.9–48.8 | 47.8–48.8 |
| Screening detected | 58 (7.2%) | 134 (10.5%) | 28 (2.3%) | 16 (1.5%) |
| Not screening detected | 663 (81.8%) | 1079 (84.2%) | 1100 (92.3%) | 972 (92.6%) |
| Unknown | 89 (11.0%) | 68 (5.3%) | 64 (5.4%) | 62 (5.9%) |
