TABLE 3.
Dementia risk (HR (95% CI)) for lean mass and grip strength (men and women)
| Men (HR (95%CI)) |
Women (HR(95%CI)) |
|||||
|---|---|---|---|---|---|---|
| Range | Model 1 | Model 2 | Range | Model 1 | Model 2 | |
| Total lean mass/height2 (kg/m2) | ||||||
| 1st Quartile | 13.99–16.97 | 1 | 1 | 11.09–13.70 | 1 | 1 |
| 2nd Quartile | 16.99–18.34 | 0.76 (0.41,1.41) | 0.48 (0.19,1.17) | 13.71–14.71 | 1.21 (0.75,1.94) | 1.10 (0.63,1.93) |
| 3rd Quartile | 18.35–19.53 | 0.67 (0.34,1.29) | 0.75 (0.33,1.73) | 14.71–15.79 | 0.98 (0.60,1.61) | 0.88 (0.48,1.61) |
| 4th Quartile | 19.62–22.84 | 0.52 (0.26,1.06) | 0.32 (0.13,0.76) | 15.82–19.44 | 1.32 (0.81,2.15) | 1.20 (0.66, 2.17) |
| P-trend | .06 | .03 | .42 | .75 | ||
| Trunk lean mass/height (kg/m2) | ||||||
| 1st Quartile | 6.90–8.47 | 1 | 1 | 6.01–7.08 | 1 | 1 |
| 2nd Quartile | 8.49–9.08 | 1.60 (0.85,3.00) | 1.00 (0.46, 2.20) | 7.08–7.54 | 0.98 (0.60,1.60) | 0.68 (0.38,1.19) |
| 3rd Quartile | 9.10–9.73 | 1.04 (0.48,2.26) | 1.15(0.47,2.81) | 7.54–8.01 | 1.22 (0.79,1.88) | 0.98 (0.59,1.62) |
| 4th quartile | 9.73–11.21 | 0.97 (0.47, 2.01) | 0.66 (0.27,1.58) | 8.01–9.93 | 1.18 (0.74,1.90) | 0.77 (0.42,1.41) |
| P-trend | .62 | .43 | .35 | .66 | ||
| Appendicular lean mass/height2 (kg/m2) | ||||||
| 1st Quartile | 5.43–7.03 | 1 | 1 | 3.60–5.27 | 1 | 1 |
| 2nd Quartile | 7.06–7.74 | 0.60 (0.33,1.10) | 0.49 (0.23,1.05) | 5.27–5.78 | 1.10 (0.67,1.81) | 0.91 (0.52,1.59) |
| 3rd Quartile | 7.78–8.51 | 0.49 (0.25,0.96) | 0.46 (0.17,1.27) | 5.79–6.40 | 1.11 (0.68,1.81) | 1.03 (0.58,1.82) |
| 4th Quartile | 8.55–10.76 | 0.45 (0.22,0.89) | 0.23(0.10,0.53) | 6.40–8.09 | 1.37 (0.84,2.22) | 1.28 (0.72, 2.26) |
| P-trend | .02 | <.01 | .23 | .45 | ||
| Grip strength (kg) | ||||||
| 1st Quartile | 20.00–32.67 | 1 | 1 | 7.67–19.33 | 1 | 1 |
| 2nd Quartile | 33.00–38.67 | 1.50 (0.77,2.91) | 1.19(0.50, 2.83) | 19.33–22.67 | 1.15 (0.71,1.87) | 1.54 (0.89, 2.65) |
| 3rd Quartile | 39.00–44.33 | 0.84 (0.39,1.79) | 0.60 (0.20,1.83) | 23.00–27.33 | 0.88 (0.52,1.47) | 0.71 (0.40,1.28) |
| 4th quartile | 44.67–56.33 | 0.93 (0.45,1.91) | 0.94 (0.36, 2.51) | 27.33–38.67 | 1.24 (0.76,2.02) | 1.44 (0.83, 2.49) |
| P-trend | .48 | .56 | .66 | .85 | ||
CI, confidence interval; HR, hazard ratio.
Model l:age (year) + race (black vs white)
Model 2: age (year) + race (black vs white) + education (≥12 years vs <12 years) +APOE ε4 (carrier vs noncarrier) + diabetes (yes vs no) + hypertension (yes vs no) + physical activity (kcal/week) + triglycerides (mmol/L) + current smoking status (yes vs no) + alcohol consumption (drinks/week) + depression scale (point) + TIA/stroke history (yes vs no) + cancer history (yes vs no) + diagnosis of COPD (yes vs no).