Comparison of categorical variables using Kaplan-Meier estimation to determine SR-free survival and log-rank analysis to determine significance
| Variable | Estimated mean SR-free survival | 95% CI lower | 95% CI upper | P value |
| Male | 22.5 | 16.0 | 28.9 | 0.351 |
| Female | 31.5 | 22.9 | 40.1 | |
| Emergency procedure | 29.8 | 22.2 | 37.3 | 0.418 |
| Elective procedure | 25.1 | 14.7 | 35.6 | |
| Age≥59.0 years | 20.6 | 12.5 | 28.8 | 0.023 |
| Age<59.0 years | 36.4 | 28.4 | 44.3 | |
| Thrombin only | 25.8 | 18.4 | 33.2 | 0.536 |
| Coil and thrombin | 31.4 | 21.0 | 41.8 | |
| Presence of gastro-oesophageal varices | 27.0 | 18.1 | 35.8 | 0.275 |
| Absence of gastro-oesophageal varices | 31.4 | 22.9 | 39.8 | |
| Patient treated with beta-blocker | 25.5 | 18.7 | 32.2 | 0.211 |
| Patient not treated with beta-blocker | 40.7 | 31.1 | 50.2 | |
| First procedure | 32.8 | 25.0 | 40.6 | 0.142 |
| Second procedure | 21.7 | 12.7 | 30.7 | |
| Third procedure | 8.6 | 1.8 | 15.4 |
Estimated mean survival is dependent and is limited to the largest survival time if data are censored. P values demonstrate a significantly lower mean SR-free survival for patients above the median age of 59.0 years.
SR, significant rebleeding.