Patient demographics by OLGA stage at enrolment (T0)
| Patients (n) 1755 | OLGA 0 1362 patients 77.6% | OLGA I 253 patients 14.4% | OLGA II 88 patients 5.1% | OLGA III 37 patients 2.1% | OLGA IV 15 patients 0.9% | P value | |||||
| Number | % | Number | % | Number | % | Number | % | Number | % | ||
| Gender | |||||||||||
| Male | 611 | 44.9 | 113 | 44.7 | 40 | 45.5 | 17 | 46.0 | 8 | 53.3 | 0.98 |
| Female | 751 | 55.1 | 140 | 55.3 | 48 | 54.6 | 20 | 54.1 | 7 | 46.7 | |
| Age (years) | |||||||||||
| Mean (range) | 50.3 (18–84) | 59.4 (25–88) | 61.6 (33–82) | 63.6 (40–81) | 70.0 (61–86) | <0.0001 | |||||
| Age in years (Q=quartiles) | |||||||||||
| 1° Q (18–42 years) | 412 | 30.2 | 24 | 9.5 | 7 | 8.0 | 2 | 5.3 | 0 | 0 | < 0.0001 |
| 2° Q (43–52 years) | 337 | 24.7 | 48 | 19.0 | 14 | 16.1 | 5 | 13.2 | 0 | 0 | |
| 3° Q (53–63 years) | 326 | 23.9 | 82 | 32.4 | 17 | 19.5 | 9 | 23.7 | 3 | 20 | |
| 4° Q (64–88 years) | 287 | 21.1 | 99 | 39.1 | 49 | 56.3 | 22 | 57.9 | 12 | 80 | |