Table 1 Baseline characteristics of the gastric cancer patients and controls
Cases ( n =100) No. (%) | Controls ( n =400) No. (%) | P -value* | |
|---|---|---|---|
Gender | |||
Female | 33 (33) | 132 (33) | |
Male | 67 (67) | 268 (67) | 1.00 |
Age (year) | |||
<65 | 60 (60) | 252 (63) | |
⩾65 | 40 (40) | 148 (37) | 0.58 |
Smoking history | |||
Never smoker | 34 (34) | 171 (43) | |
Ex-smoker | 14 (14) | 58 (15) | |
Current smoker | 52 (52) | 171 (43) | 0.22 |
Alcohol consumption | |||
Never drinker | 44 (44) | 179 (45) | |
Ex-drinker | 12 (12) | 33 (8) | |
Current drinker | 44 (44) | 188 (47) | 0.49 |
Education (year) | |||
No education | 27 (27) | 111 (29) | |
1–12 | 71 (71) | 283 (71) | |
⩾13 | 2 (2) | 6 (2) | 0.93 |
Follow-up duration until diagnosis (year) | |||
<2.0 | 37 (37) | ||
2.0–4.9 | 46 (46) | ||
⩾5.0 | 17 (17) | ||
Tumour sites | |||
Cardia | 7 (7) | ||
Non-cardia | 75 (75) | ||
Unspecified | 18 (18) | ||
Tumour pathology | |||
Adenocarcinoma | 87 (87) | ||
Others | 3 (3) | ||
Unspecified | 10 (10) | ||
