Table 3.
Subgroup analyses of the association between cumulative intake and incident hypertension: CHNS (1991–2011).
| Q1 | Q2 | Q3 | Q4 | p for Interaction | |
|---|---|---|---|---|---|
| BMI status | |||||
| Normal | 1.00 | 0.92 (0.81–1.04) | 0.88 (0.77–1.02) | 1.03 (0.88–1.21) | 0.496 |
| Overweight/obese | 1.00 | 0.88 (0.74–1.05) | 0.92 (0.78–1.10) | 0.89 (0.74–1.07) | |
| Region | |||||
| North | 1.00 | 0.94 (0.80–1.11) | 0.82 (0.69–0.97) | 0.84 (0.70–1.00) | 0.001 |
| South | 1.00 | 0.89 (0.77–1.03) | 0.96 (0.82–1.13) | 1.11 (0.93–1.33) | |
| Income | |||||
| Low | 1.00 | 0.84 (0.71–1.00) | 0.91 (0.75–1.10) | 0.87 (0.69–1.09) | 0.541 |
| Medium | 1.00 | 0.97 (0.81–1.15) | 0.89 (0.73–1.07) | 0.96 (0.78–1.18) | |
| High | 1.00 | 0.94 (0.78–1.13) | 0.94 (0.78–1.13) | 1.03 (0.85–1.26) | |
| Sex | |||||
| Males | 1.00 | 0.84 (0.71–0.99) | 0.85 (0.72–1.00) | 0.91 (0.77–1.08) | 0.677 |
| Females | 1.00 | 0.97 (0.85–1.11) | 0.94 (0.81–1.09) | 0.99 (0.84–1.18) | |
| Urbanization level | |||||
| Low | 1.00 | 0.83 (0.70–0.99) | 0.95 (0.80–1.14) | 0.94 (0.76–1.16) | 0.241 |
| Medium | 1.00 | 0.88 (0.74–1.04) | 0.81 (0.68–0.98) | 0.98 (0.80–1.19) | |
| High | 1.00 | 1.08 (0.88–1.32) | 0.98 (0.80–1.21) | 1.02 (0.82–1.27) |
Model adjusted for age, sex, intake of energy, fat and sodium, smoking, alcohol drinking, income, urban, education, physical activity, and BMI, and dietary patterns. Stratification variables were not adjusted in the corresponding models. Bold: statistically significant.