Table 1.
Demographic and pathological features of the study population
| Total |
Stage 0 |
Stage I |
Stage II |
Stage III |
Stage IV |
||||||
| OLGA | OLGIM | OLGA | OLGIM | OLGA | OLGIM | OLGA | OLGIM | OLGA | OLGIM | ||
| Cases | 4552 | 2967 | 3018 | 951 | 927 | 391 | 378 | 199 | 188 | 44 | 41 |
| Age (yr) mean ± SD (median) | 55.1 ± 15.8 (57.0) | 51.0 ± 15.9 (50.5) | 51.1 ± 15.9 (50.6) | 60.7 ± 13.1 (63.1) | 61.1 ± 12.8 (63.3) | 64.4 ± 10.9 (65.4) | 64.7 ± 10.8 (66.3) | 67.1 ± 9.6 (67.7) | 67.0 ± 9.7 (67.7) | 67.5 ± 13.1 (67.6) | 67.4 ± 13.3 (68.4) |
| Sex (M/F) | 2085/2467 | 1344/1623 | 1364/1 654 | 447/504 | 438/489 | 164/227 | 158/220 | 98/101 | 94/94 | 32/12 | 31/10 |
| Hp + ve (%) | 1698 (37.30) | 1188 (40.00) | 1198 (39.70) | 322 (33.90) | 318 (34.30) | 130 (33.20) | 126 (33.30) | 47 (23.60) | 45 (23.90) | 11 (25.00) | 11 (26.80) |
| Neoplastic lesions1 (No. of cases) | 67 | 3 | 3 | 2 | 3 | 3 | 4 | 39 | 38 | 20 | 19 |
1
Including low- and high-grade intraepithelial neoplasia and invasive gastric cancers. SD: Standard deviation; M: Males; F: Females; Hp: Helicobacter pylori; OLGA: Operative link for gastritis assessment; OLGIM: Operative link on intestinal metaplasia assessment.