Table 2 Effects of age and body mass index (BMI) on period trends for hypertension prevalence and mean blood pressure by sex, Samoa, 1991–2013
Variable in the model | Effect of period on hypertension trends over 23 years (1991–2013) | |||
|---|---|---|---|---|
Men | Women | |||
RR (95%CI) | HT % 2013^ | RR (95%CI) | HT % 2013^ | |
1. Period | 2.02 (1.64–2.49) | 33.1 | 1.95 (1.59–2.38) | 27.3 |
2. Period and Age | 1.90 (1.55–2.34) | 31.1 | 1.82 (1.49–2.22) | 25.5 |
Proportional attenuation (1–2) a | 6.06% | 6.06% | 6.70% | 6.70% |
3. Period, Age and BMI | 1.54 (1.25–1.90) | 25.2 | 1.47 (1.21–1.80) | 20.7 |
Proportional attenuation (2–3) a | 18.9% | 18.9% | 18.9% | 18.9% |
Variable in the model | Increase and mean SBP (mmHg) over 23 years (1991–2013) | |||
SBP (95%CI) | SBP 2013^ | SBP (95%CI) | SBP 2013^ | |
1. Period | 9.77 (8.23–11.32) | 131.5 | 6.87 (5.27–8.47) | 125.3 |
2. Period and Age | 9.20 (7.69–10.71) | 130.9 | 5.96 (4.51–7.41) | 124.4 |
Proportional attenuation (1–2) a | 5.84% | 5.84% | 13.2% | 13.2% |
3. Period, Age and BMI | 7.17 (5.72–8.63) | 128.9 | 4.04 (2.60–5.49) | 122.5 |
Proportional attenuation (2–3) a | 22.1% | 22.1% | 32.2% | 32.2% |
Variable in the model | Increase and mean DBP (mmHg) over 23 years (1991–2013) | |||
DBP (95%CI) | DBP 2013^ | DBP (95%CI) | DBP 2013^ | |
1. Period | 6.58 (5.37–7.79) | 80.6 | 8.26 (7.19–9.33) | 81.1 |
2. Period and Age | 5.97 (4.81–7.13) | 80.0 | 7.85 (6.82–8.87) | 80.7 |
Proportional attenuation (1–2) a | 9.18% | 9.18% | 5.0% | 5.0% |
3. Period, Age and BMI | 3.77 (2.70–4.84) | 77.8 | 5.32 (4.35–6.29) | 78.2 |
Proportional attenuation (2–3) a | 36.9% | 36.9% | 32.2% | 32.2% |