Odds of hypertension in survey 2 relative to odds for hypertension in survey 1
| OR (95% CI) | ||
| Rural | Urban | |
| Unadjusted | 3.2 (2.7 to 3.8) | 2.3 (2.0 to 2.6) |
| Model 1: Adjusted for age | 3.4 (2.9 to 4.0) | 2.6 (2.3 to 2.9) |
| Model 2: Adjusted for age and gender | 3.3 (2.8 to 3.9) | 2.6 (2.3 to 2.9) |
| Model 3: Adjusted for age, gender and obesity | 3.1 (2.6 to 3.6) | 2.6 (2.2 to 2.9) |
| Model 4: Adjusted for age, gender and WHR | 3.1 (2.6 to 3.6) | 2.4 (2.1 to 2.8) |
| Model 5: Adjusted for age, gender, obesity and WHR | 2.9 (2.4 to 3.4) | 2.4 (2.1 to 2.8) |
| Model 6: Adjusted for age, gender, obesity, WHR and diabetes | 3.3 (2.6 to 4.1) | 2.4 (2.1 to 2.7) |
| Model 7: Adjusted for age, gender, obesity, WHR, diabetes and alcohol use | 3.1 (2.4 to 4.0) | 2.3 (2.0 to 2.7) |
| Model 8: Model 7 stratified by age groups | ||
| Age 35–44 years | 5.0 (3.0 to 8.4) | 2.7 (2.1 to 3.4) |
| Age 45–54 years | 1.6 (1.2 to 2.1) | 2.1 (1.6 to 2.6) |
| Age 55–64 years | 2.1 (1.6 to 2.9) | 2.6 (1.9 to 3.4) |
Obesity: BMI ≥30 kg/m2; diabetes: FPG ≥126 mg/dL or on medication; abdominal obesity: WHR >0.90 for men and WHR >0.85 for women; p value for interaction between time and age (rural), p=0.0001; p-value for interaction between time and age (urban), p=0.0008.
BMI, body mass index; FPG, fasting plasma glucose; WHR, waist to hip ratio.