Table 3.
Quartile 1 (5–154) |
Quartile 2 (155–197) |
Quartile 3 (198–238) |
Quartile 4 (239–472) |
Total* | |||||
Number of participants (n deaths) |
284 (81) | 298 (55) | 300 (28) | 299 (30) | 1181 (194) | ||||
Person-years | 1249 | 1413 | 1495 | 1488 | 5646 | ||||
Mortality/1000 person-years | 64.9 | 38.9 | 18.7 | 20.1 | 34.4 | ||||
HR* | 95% CI | HR | 95% CI | HR | 95% CI | HR | 95% CI | ||
Model 1† | Reference | 0.66 | 0.46 to 0.94 | 0.35 | 0.23 to 0.55 | 0.47 | 0.29 to 0.94 | 0.83 | 0.77 to 0.90 |
Model 2‡ | Reference | 0.68 | 0.48 to 0.98 | 0.37 | 0.23 to 0.58 | 0.46 | 0.29 to 0.75 | 0.83 | 0.77 to 0.90 |
Model 3§ | Reference | 0.74 | 0.51 to 1.06 | 0.39 | 0.25 to 0.62 | 0.51 | 0.31 to 0.82 | 0.85 | 0.78 to 0.92 |
Model 4¶ | Reference | 0.76 | 0.53 to 1.10 | 0.42 | 0.27 to 0.68 | 0.57 | 0.34 to 0.95 | 0.87 | 0.80 to 0.95 |
Model 5** | Reference | 0.86 | 0.78 to 0.94 |
*HR for mortality per 30 min of LIPA per day (continuous variable).
†Model 1=age+region of residence+season of wear+accelerometer wear time.
‡Model 2=model 1+social class+alcohol use+smoking+ sleep time+living alone+body mass index.
§Model 3=model 2+mobility disability.
¶Model 4=model 3+MVPA.
**Model 5=model 3+sedentary behaviour+MVPA (but without adjustment for accelerometer wear time).
CHD, coronary heart disease; LIPA, light physical activity; MVPA, moderate to vigorous physical activity.