Table 2.
Association between minutes per day in sedentary behaviour with all-cause mortality among 1181 British men without pre-existing CHD, stroke or heart failure
| Quartile 1 (295–560) |
Quartile 2 (561–616) |
Quartile 3 (617–672) |
Quartile 4 (673–1054) |
Total* | |||||
| Number of participants (n deaths) |
296 (32) | 302 (35) | 294 (52) | 289 (75) | 1181 (194) | ||||
| Person-years | 1461 | 1475 | 1413 | 1297 | 5646 | ||||
| Mortality/1000 person-years | 21.9 | 23.7 | 36.8 | 57.8 | 34.4 | ||||
| HR | 95% CI | HR | 95% CI | HR | 95% CI | HR | 95% CI | ||
| Model 1† | Reference | 1.14 | 0.70 to 1.84 | 1.65 | 1.04 to 2.63 | 3.08 | 1.93 to 4.92 | 1.17 | 1.10 to 1.25 |
| Model 2‡ | Reference | 1.19 | 0.73 to 1.93 | 1.71 | 1.06 to 2.73 | 3.18 | 1.96 to 5.15 | 1.17 | 1.10 to 1.26 |
| Model 3§ | Reference | 1.16 | 0.71 to 1.88 | 1.58 | 0.98 to 2.54 | 2.80 | 1.71 to 4.57 | 1.15 | 1.07 to 1.23 |
| Model 4¶ | Reference | 1.14 | 0.69 to 1.91 | 1.55 | 0.91 to 2.64 | 2.73 | 1.50 to 4.95 | 1.15 | 1.06 to 1.26 |
| Model 5** | Reference | 0.99 | 0.92 to 1.06 | ||||||
*HR for mortality per 30 min of sedentary behaviour 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+LIPA+ MVPA (but without adjustment for accelerometer wear time).
CHD, coronary heart disease; LIPA, light physical activity; MVPA, moderate to vigorous physical activity.