Table 2 Odds ratio (OR) with 95% confidence interval (CI), and adjusted risk difference (ARD) with 95% CI of dementia associated with joint categories of change in physical activity (PA) and trajectories of systolic blood pressure (SBP). Based on complete case data (n = 6156)
| Â | PA and SBP groups | OR (95% CI)a | OR (95% CI)b | ARD % (95% CI)b |
|---|---|---|---|---|
PA stable low | SBP high | 1.00 (Reference) | 1.00 (Reference) | 0 (Reference) |
SBP mid | 0.74 (0.56, 0.97) | 0.80 (0.61, 1.06) | -2.34 (-5.42, 0.75) | |
SBP low | 0.63 (0.47, 0.84) | 0.71 (0.53, 0.96) | -3.44 (-6.64, -0.25) | |
PA high-low | SBP high | 0.41 (0.09, 1.98) | 0.49 (0.10, 2.37) | -6.53 (-18.27, 5.22) |
SBP mid | 0.59 (0.29, 1.18) | 0.70 (0.35, 1.41) | -3.64(-10.25, 2.98) | |
SBP low | 1.45 (0.78, 2.69) | 1.83 (0.97, 3.45) | 7.93 (-1.14, 17.01) | |
PA low–high | SBP high | 1.21 (0.60, 2.47) | 1.28 (0.62, 2.66) | 3.00 (-6.16, 12.15) |
SBP mid | 0.61 (0.40, 0.94) | 0.73 (0.47, 1.12) | -3.30 (-7.68, 1.08) | |
SBP low | 0.37 (0.23, 0.62) | 0.47 (0.28, 0.78) | -6.85 (-11.13, -2.58) | |
PA stable high | SBP high | 0.56 (0.07, 4.36) | 0.66 (0.08, 5.17) | -4.16 (-22.49, 14.16) |
SBP mid | 0.55 (0.22, 1.35) | 0.72 (0.29, 1.80) | -3.40 (-12.11, 5.32) | |
SBP low | 0.29 (0.10, 0.83) | 0.38 (0.13, 1.10) | -8.34 (-15.32, -1.36) |