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Prevalence of proximal segment plaque among cases and controls
| Proximal vessel | Total | |||
|---|---|---|---|---|
| Normal | Insignificantdisease | Significantdisease | ||
| Cases | 230 (62.2%) | 80 (21.6%) | 60 (16.2%) | 370 |
| Controls | 200 (51.3%) | 130 (33.3%) | 60 (15.4%) | 390 |
| Total | 430 | 210 | 120 | 760 |
