Table 1.
Cases (n=226) | Controls (n=451) | |
---|---|---|
Mean age, y ± SD | 62.6 ± 9.5 | 62.7 ± 9.3 |
Mean BMI, kg/m2 ± SD | 23.5 ± 3.1 | 24.0 ± 3.3 |
Marital status, n (%) | ||
Married | 195 (96.5) | 390 (97.5) |
Not married (single/widowed/divorced) | 7 (3.5) | 10 (2.5) |
Smoking status, n (%) | ||
Never smoker | 59 (26.1) | 152 (33.7) |
Former smoker | 37 (16.4) | 81 (18.0) |
Current smoker | 130 (57.5) | 218 (48.3) |
Alcohol drinking status, n (%) | ||
Never drinker | 137 (60.6) | 292 (64.8) |
Former drinker | 14 (6.2) | 15 (3.3) |
Current drinker | 75 (33.2) | 144 (31.9) |
Regular physical activity, n (%) | 107 (47.4) | 206 (45.7) |
Highest education level achieved, n (%) | ||
Elementary school or less | 22 (9.8) | 57 (12.8) |
Junior High School | 96 (42.9) | 153 (34.4) |
High School | 62 (27.7) | 141 (31.7) |
Professional high education or above | 44 (19.6) | 94 (21.1) |
Monthly per capita income, n (%) | ||
< 500 yuan | 21 (9.3) | 48 (10.6) |
500 – < 1,000 yuan | 119 (52.7) | 224 (49.7) |
1,000 – < 2,000 yuan | 69 (30.5) | 137 (30.4) |
≥ 2,000 yuan | 17 (7.5) | 42 (9.3) |
Occupation, n (%) | ||
Professional | 62 (27.4) | 142 (31.6) |
Clerical | 48 (21.2) | 97 (21.6) |
Manual | 116 (51.3) | 211 (46.9) |
Mean fruit intake, g/day ± SD | 65.4 ± 68.5 | 77.5 ± 72.1 |
Family history of gastric cancer, n (%) | 19 (8.4) | 35 (7.8) |
Regular aspirin use, n (%) | 19 (8.4) | 63 (14.0) |
Diagnosis of chronic gastritis, n (%) | 57 (25.2) | 80 (17.7) |
Abbreviation: SD, standard deviation