Table 2.
The ORs and 95% CIs for BMI and body shape in association with risk of GC cases
| Anthropometric parameters | Controls N (%) | GC N (%) | Unadjusted OR (95% CI) | Adjusted OR (95% CI)a |
|---|---|---|---|---|
| BMI at age 20 | ||||
| Underweight | 221 (11.11) | 92 (9.82) | 0.87 (0.67~1.13) | 0.94 (0.71~1.25) |
| Normal | 1343 (67.52) | 641 (68.41) | 1.00 (reference) | 1.00 (reference) |
| Overweight | 375 (18.85) | 179 (19.10) | 1.00 (0.82~1.22) | 1.03 (0.83~1.28) |
| Obesity | 50 (2.51) | 25 (2.67) | 1.05 (0.64~1.71) | 1.09 (0.65~1.85) |
| P for trend | 0.455 | 0.536 | ||
| BMI 10 years before interview | ||||
| Underweight | 110 (5.53) | 93 (9.93) | 1.72 (1.28~2.30) | 1.53 (1.11~2.11) |
| Normal | 1208 (60.73) | 594 (63.39) | 1.00 (reference) | 1.00 (reference) |
| Overweight | 542 (27.25) | 214 (22.84) | 0.80 (0.67~0.97) | 0.82 (0.67~1.00) |
| Obesity | 129 (6.49) | 36 (3.84) | 0.57 (0.39~0.83) | 0.54 (0.36~0.83) |
| P for trend | <0.001 | <0.001 | ||
| Body shape at age 20 | ||||
| Shape 1 | 110 (5.53) | 53 (5.66) | 1.01 (0.71~1.43) | 1.10 (0.76~1.60) |
| Shape 2 | 458 (23.03) | 202 (21.56) | 0.92 (0.75~1.14) | 0.92 (0.74~1.16) |
| Shape 3 | 744 (37.41) | 355 (37.89) | 1.00 (reference) | 1.00 (reference) |
| Shape 4 | 496 (24.94) | 230 (24.55) | 0.97 (0.79~1.19) | 0.97 (0.78~1.21) |
| Shape 5 | 143 (7.19) | 75 (8.00) | 1.10 (0.81~1.49) | 1.29 (0.93~1.79) |
| Shape 6/7 | 38 (1.91) | 22 (2.35) | 1.21 (0.71~2.08) | 1.31 (0.74~2.33) |
| P for trend | 0.378 | 0.232 | ||
| Body shape 10 years before interview | ||||
| Shape 1 | 50 (2.51) | 69 (7.36) | 2.97 (2.02~4.37) | 3.14 (2.08~4.76) |
| Shape 2 | 318 (15.99) | 185 (19.74) | 1.25 (1.00~1.57) | 1.21 (0.95~1.54) |
| Shape 3 | 695 (34.94) | 323 (34.47) | 1.00 (reference) | 1.00 (reference) |
| Shape 4 | 587 (29.51) | 217 (23.16) | 0.80 (0.65~0.98) | 0.85 (0.69~1.06) |
| Shape 5 | 243 (12.22) | 119 (12.70) | 1.05 (0.82~1.36) | 1.19 (0.91~1.57) |
| Shape 6/7 | 96 (4.83) | 24 (2.56) | 0.54 (0.34~0.86) | 0.58 (0.35~0.97) |
| P for trend | <0.001 | <0.001 | ||
Abbreviations: GC, gastric cancer; BMI, body mass index; ORs, odd ratios; CIs, confidence intervals.
Note: Boldface indicates that P for trend < 0.05.
a Adjusted for age, sex, education, marital status, occupation, sum of missing and filled teeth, daily frequency of brushing teeth, tea drinking, smoking, alcohol drinking, Hp infection, job intensity, family wealth score and family history of GC among first-degree relatives.