Table 6 Baseline characteristics of the nested case–control study
Characteristic | CAG group (n = 109) | CNAG group (n = 159) | χ2/t | P value |
|---|---|---|---|---|
Sex (n, %) | 0.249 | 0.618 | ||
Male | 63 (57.8%) | 87 (54.7%) | ||
Female | 46 (42.2%) | 72 (45.3%) | ||
Age | 56.41 ± 14.52 | 55.95 ± 13.93 | − 0.263 | 0.793 |
Distribution (n, %) | 1.607 | 0.658 | ||
< 40 yr | 15 (13.8%) | 16 (10.1%) | ||
40–59 yr | 45 (41.3%) | 76 (47.8%) | ||
60–75 yr | 39 (35.8%) | 55 (34.6%) | ||
> 75 yr | 10 (9.2%) | 12 (7.5%) | ||
Indication (n, %) | 0.190 | 0.909 | ||
HP infection | 30 (27.5%) | 40 (25.2%) | ||
Screening | 21 (19.3%) | 32 (20.1%) | ||
Diagnostic | 58 (53.2%) | 87 (54.7%) | ||
Smoking (n, %) | 1.408 | 0.235 | ||
No | 82 (75.2%) | 109 (68.6%) | ||
Yes | 27 (24.8%) | 50 (31.4%) | ||
Drinking (n, %) | 0.310 | 0.578 | ||
No | 74 (67.9%) | 113 (71.1%) | ||
Yes | 35 (32.1%) | 46 (28.9%) | ||
HP infection (n, %) | 11.238 | 0.001 | ||
No | 51 (46.8%) | 107 (67.3%) | ||
Yes | 58 (53.2%) | 52 (32.7%) |