TABLE 3.
Effects of age and BMI on trends in hypertension prevalence and mean blood pressure by sex and ethnicity, Fiji, 1980–2011a
| i-Taukei men | i-Taukei women | Indian men | Indian women | |
| RR for hypertension over 32 years (1980–2011) | ||||
| RR (95%CI) | RR (95% CI) | RR (95% CI) | RR (95% CI) | |
| 1. Period | 2.75 (2.17–3.50) | 1.59 (1.30–1.95) | 2.02 (1.57–2.60) | 2.02 (1.59–2.56) |
| 2. Period and age | 2.73 (2.15–3.46) | 1.58 (1.29–1.93) | 1.68 (1.31–2.16) | 1.51 (1.19–1.92) |
| Proportional decline in RR (1–2)a | 0.8% | 0.6% | 16.7% | 24.9% |
| 3. Period, age and BMI | 2.51 (1.97–3.18) | 1.44 (1.17–1.77) | 1.36 (1.06–1.74) | 1.17 (0.92–1.48) |
| Proportional decline in RR (2–3)a | 8.1% | 8.8% | 19.5% | 22.8% |
| Increase in mean SBP (mmHg) over 32 years (1980–2011) | ||||
| BP (95%CI) | BP (95% CI) | BP (95% CI) | BP (95% CI) | |
| 1. Period | 13.95 (12.09–15.82) | 7.17 (4.90–9.45) | 11.17 (9.15–13.19) | 12.70 (10.33–15.08) |
| 2. Period and age | 13.90 (12.07–15.72) | 7.11 (5.07–9.15) | 9.52 (7.58–11.46) | 9.02 (6.92–11.12) |
| Proportional decline in BP (1–2)a | 0.4% | 0.8% | 14.7% | 29.0% |
| 3. Period, age and BMI | 12.82 (11.04–14.59) | 5.33 (3.33–7.34) | 6.18 (4.91–8.71) | 5.51 (3.42–7.60) |
| Proportional decline in RR (2–3)a | 7.8% | 25.0% | 28.5% | 38.9% |
| Increase in mean DBP (mmHg) over 32 years (1980–2011) | ||||
| BP (95%CI) | BP (95% CI) | BP (95% CI) | BP (95% CI) | |
| 1. Period | 5.89 (4.58–7.20) | 4.23 (2.91–5.55) | 5.66 (4.23–7.08) | 8.37 (6.95–9.79) |
| 2. Period and age | 5.85 (4.57–7.14) | 4.21 (2.93–5.48) | 4.76 (3.37–6.16) | 6.83 (5.49–8.17) |
| Proportional decline in BP (1–2)a | 0.6% | 0.5% | 15.8% | 18.4% |
| 3. Period, age and BMI | 4.91 (3.68–6.14) | 2.63 (1.41–3.85) | 2.55 (1.20–3.90) | 3.83 (2.52–5.13) |
| Proportional decline in BP (2–3)a | 16.2% | 37.5% | 46.5% | 44.0% |
1–3, regression models; BP, blood pressure; RR, relative risk.
aProportional decline from previous model.