Table 3.
Relative Risk (RR) of falling across quintiles of objective physical activity stratified by age.
| Age <80 | Age ≥80 | ||||||
|---|---|---|---|---|---|---|---|
| N (%) | RR1 (95% CI) | RR2 (95% CI) | N (%) | RR1 (95% CI) | RR2 (95% CI) | p-interaction | |
| Total EE (kcal/d) | |||||||
| Q1 (<1975.0) | 40 (10.0) | 1.04 (0.66, 1.64) | 0.78 (0.44, 1.37) | 134 (37.3) | 1.07 (0.63, 1.83) | 1.24 (0.70, 2.21) | 0.50 |
| Q2 (1975.0 - <2201.6) | 64 (16.0) | 0.87 (0.59, 1.26) | 0.71 (0.47, 1.09) | 100 (27.9) | 1.17 (0.69, 1.99) | 1.30 (0.75, 2.25) | |
| Q3 (2201.6 - <2407.4) | 77 (19.3) | 0.66 (0.47, 0.94) | 0.57 (0.40, 0.80) | 60 (16.7) | 0.81 (0.47, 1.40) | 0.92 (0.52, 1.61) | |
| Q4 (2407.4 - <2683.2) | 93 (23.3) | 0.69 (0.50, 0.95) | 0.65 (0.47, 0.90) | 41 (11.4) | 1.11 (0.61, 2.00) | 1.07 (0.60, 1.91) | |
| Q5 (>2683.2) | 126 (31.5) | Ref | Ref | 24 (6.7) | Ref | Ref | |
| P trend | 0.93 | 0.27 | 0.63 | 0.27 | |||
| Active EE (kcal/d) | |||||||
| Q1 (<190.6) | 58 (14.5) | 0.94 (0.62, 1.41) | 0.75 (0.48, 1.19) | 131 (36.5) | 1.67 (1.05, 2.65) | 1.43 (0.90, 2.26) | 0.02 |
| Q2 (190.6 - <323.8) | 55 (13.8) | 0.63 (0.41, 0.96) | 0.53 (0.36, 0.79) | 80 (22.3) | 1.13 (0.69, 1.85) | 1.11 (0.68, 1.79) | |
| Q3 (323.8 - <507.8) | 73 (18.3) | 0.70 (0.49, 1.01) | 0.63 (0.44, 0.90) | 75 (20.9) | 1.10 (0.68, 1.79) | 1.12 (0.69, 1.82) | |
| Q4 (507.8 - <775.0) | 100 (25.0) | 0.70 (0.51, 0.97) | 0.66 (0.48, 0.92) | 41 (11.4) | 0.97 (0.56, 1.69) | 1.00 (0.58, 1.70) | |
| Q5 (>775.0) | 114 (28.5) | Ref | Ref | 32 (8.9) | Ref | Ref | |
| P trend | 0.42 | 0.08 | 0.01 | 0.09 | |||
| Sedentary activity (mins/day) | |||||||
| Q1 (>1159.8) | 107 (26.7) | 1.09 (0.73, 1.63) | 1.29 (0.84, 1.99) | 36 (10.0) | 0.56 (0.35, 0.88) | 0.67 (0.42, 1.06) | 0.01 |
| Q2 (1159.8 - <1224.8) | 94 (23.5) | 0.95 (0.63, 1.43) | 1.08 (0.69, 1.68) | 44 (12.3) | 0.62 (0.41, 0.95) | 0.78 (0.51, 1.18) | |
| Q3 (1224.8 - <1269.8) | 72 (18.0) | 0.95 (0.62, 1.44) | 0.98 (0.63, 1.52) | 84 (23.4) | 0.70 (0.49, 1.01) | 0.85 (0.59, 1.22) | |
| Q4 (1269.8 - <1314.0) | 62 (15.2) | 0.75 (0.49, 1.17) | 0.81 (0.52, 1.28) | 82 (22.8) | 0.78 (0.55, 1.13) | 0.87 (0.60, 1.24) | |
| Q5 (>1314.0) | 65 (16.3) | Ref | Ref | 113 (31.5) | Ref | Ref | |
| P trend | 0.36 | 0.10 | 0.005 | 0.08 | |||
| Moderate activity (mins/day) | |||||||
| Q1 (<32.6) | 57 (14.3) | 0.93 (0.62, 1.40) | 0.76 (0.48, 1.20) | 122 (34.0) | 1.83 (1.21, 2.79) | 1.54 (0.99, 2.39) | 0.01 |
| Q2 (32.6 - <55.8) | 59 (14.8) | 0.68 (0.46, 1.01) | 0.59 (0.40, 0.87) | 86 (24.0) | 1.23 (0.80, 1.91) | 1.18 (0.77, 1.83) | |
| Q3 (55.8 - <84.6) | 77 (19.3) | 0.77 (0.54, 1.11) | 0.68 (0.48, 0.98) | 67 (18.7) | 1.17 (0.74, 1.84) | 1.15 (0.73, 1.82) | |
| Q4 (84.6 - <125.0) | 95 (23.8) | 0.81 (0.58, 1.14) | 0.79 (0.56, 1.10) | 44 (12.3) | 1.08 (0.64, 1.82) | 1.13 (0.69, 1.86) | |
| Q5 (>125.0) | 112 (28.0) | Ref | Ref | 40 (11.4) | Ref | Ref | |
| P trend | 0.42 | 0.10 | 0.003 | 0.06 | |||
RR1= Base model=Adjusted for age, race, clinic, season.
RR2= Multivariate model=Base model + health status, height, weight, smoking, diabetes.