Table 4.
Incidence rate(per 1000 person yrs). (95% confidence interval) and hazard ratio (95% confidence interval (CI)) of non-spine fractures across quintiles of objective physical activity.
| Incidence Rate (95% CI) | Base Model HR (95% CI) | MV Model HR (95% CI) | |
|---|---|---|---|
| Total EE (kcal/d) per 1SD increase HR=0.86 (0.72, 1.02) p=0.08 | |||
| Q1 (<1975.0) | 20.2 (12.9, 27.6) | 1.59 (0.96, 2.62) | 1.71 (0.94, 3.11) |
| Q2 (1975.0 - <2201.6) | 24.8 (17.5, 32.3) | 1.56 (0.97, 2.52) | 1.70 (1.01, 2.85) |
| Q3 (2201.6 - <2407.4) | 12.7 (7.8, 17.6) | 0.84 (0.49, 1.42) | 0.90 (0.52, 1.56) |
| Q4 (2407.4 - <2683.2) | 15.9 (9.1, 22.7) | 0.99 (0.60, 1.65) | 1.00 (0.59, 1.68) |
| Q5 (≥2683.2) | 16.1 (8.7, 23.4) | Ref | Ref |
| P trend | --- | 0.02 | 0.02 |
| Active EE (kcal/d) per 1SD increase HR=0.80 (0.67, 0.96) p=0.02 | |||
| Q1 (<190.6) | 29.1 (20.1, 38.0) | 2.11 (1.31, 3.40) | 1.82 (1.10, 3.00) |
| Q2 (190.6 - <323.8) | 16.2 (10.5, 22.0) | 1.16 (0.69, 1.93) | 1.02 (0.60, 1.72) |
| Q3 (323.8 - <507.8) | 16.6 (10.8, 22.4) | 1.10 (0.66, 1.85) | 1.04 (0.62, 1.76) |
| Q4 (507.8 - <775.0) | 16.1 (10.6, 21.5) | 1.25 (0.76, 2.06) | 1.20 (0.72, 2.00) |
| Q5 (≥775.0) | 18.0 (8.6, 27.5) | Ref | Ref |
| P trend | --- | 0.004 | 0.04 |
| Sedentary activity (min/d) per 1SD increase HR=1.20 (1.02, 1.42) p=0.03 | |||
| Q1 (<1159.8) | 15.7 (9.5, 21.8) | 0.64 (0.40, 1.04) | 0.72 (0.43, 1.20) |
| Q2 (1159.8 - <1224.8) | 14.1 (8.7, 19.4) | 0.58 (0.36, 0.94) | 0.65 (0.39, 1.08) |
| Q3 (1224.8 - <1269.8) | 20.4 (13.7, 27.4) | 0.76 (0.49, 1.17) | 0.83 (0.53, 1.30) |
| Q4 (1269.8 - <1314.0) | 20.9 (14.0, 27.7) | 0.82 (0.54, 1.26) | 0.93 (0.60, 1.42) |
| Q5 (≥1314.0) | 23.2 (16.0, 30.4) | Ref | Ref |
| P trend | --- | 0.02 | 0.09 |
| Moderate activity (min/d) per 1SD increase HR=0.83 (0.70, 0.98) p=0.03 | |||
| Q1 (<32.6) | 27.3 (19.2, 35.4) | 1.84 (1.15, 2.92) | 1.70(1.03, 2.80) |
| Q2 (32.6 - <55.8) | 14.9 (9.6, 20.3) | 1.05 (0.63, 1.75) | 0.96 (0.56, 1.62) |
| Q3 (55.8 - <84.6) | 21.0 (14.4, 27.6) | 1.29 (0.80, 2.09) | 1.25 (0.76, 2.04) |
| Q4 (84.6 - <125.0) | 14.7 (9.3, 20.1) | 1.02 (0.61, 1.69) | 1.01 (0.60, 1.70) |
| Q5 (≥125.0) | 18.3 (9.2, 27.4) | Ref | Ref |
| P trend | --- | 0.01 | 0.07 |
Base model=Adjusted for age, race, clinic, season. Ref=referent.
Multivariate model=Base model + health status, height, weight, smoking, diabetes, fracture history, BMD total hip.