Table 5.
Stratified analysis of CHINA-DII and gastric cancer risk by demographic characteristics.
| Subgroups | Case/control | Low CHINA-DII | High CHINA-DII* | P value | P for interaction |
|---|---|---|---|---|---|
| Age groups, years | 0.002 | ||||
| ≤55 | 132/188 | Reference | 2.44 (1.51–3.96) | <0.001 | |
| >55 | 204/148 | Reference | 0.92 (0.59–1.44) | 0.724 | |
| Marital status | 0.570 | ||||
| Married | 315/296 | Reference | 1.41 (1.01–1.96) | 0.044 | |
| Single/Seperated/Divorced/Widowed | 21/40 | Reference | 1.91 (0.53–6.83) | 0.320 | |
| Smoking | 0.139 | ||||
| Yes | 131/102 | Reference | 1.09 (0.63–1.88) | 0.764 | |
| No | 205/234 | Reference | 1.70 (1.14–2.54) | 0.009 | |
| Daily life stress | <0.001 | ||||
| None/Low | 227/182 | Reference | 0.95 (0.63–1.43) | 0.798 | |
| Moderate/High | 109/154 | Reference | 2.82 (1.67–4.75) | <0.001 | |
*
Adjusted for age group, marital status, smoking, and perceived daily stress level (excluding stratification factors).