Type of activity | N | % | Absolute dense volume (cm 3 ) | Nondense volume (cm 3 ) | Percent dense volume (%) | |||
---|---|---|---|---|---|---|---|---|
Unadjusted | Adjusted | Unadjusted | Adjusted | Unadjusted | Adjusted | |||
β (95% CI) | β (95% CI) a | β (95% CI) | β (95% CI) a | β (95% CI) | β (95% CI) a | |||
Total activity (MET-hours/day) | ||||||||
< 40.0 | 12,180 | 31.3 | Reference | Reference | Reference | Reference | Reference | Reference |
40.0 to 44.9 | 15,273 | 39.2 | −2.7 (−3.5, −2.0) | −1.2 (−2.0, −0.4) | −86.9 (−97.8, −75.9) | −14.6 (−23.2, −6.0) | 0.5 (0.4, 0.6) | 0 (−0.1, 0.1) |
45.0 to 49.9 | 7,591 | 19.2 | −3.1 (−4.0, −2.2) | −2.5 (−3.5, −1.5) | −138.4 (−151.3, −125.5) | −34.9 (−45.0, −24.9) | 1.1 (0.9, 1.2) | 0.1 (0, 0.2) |
≥ 50.0 | 3,869 | 9.9 | −2.4 (−3.5, −1.3) | −3.4 (−4.7, −2.3) | −110.7 (−127.6, −93.8) | −23.7 (−36.9, −10.4) | 1.0 (0.8, 1.2) | 0 (−0.2, 0.2) |
P global b | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.39 | ||
For every 5 MET-hours/day increasec | −0.9 (−1.2, −0.6) | −1.1 (−1.3, −0.7) | −39.0 (−43.1, −35.0) | −8.5 (−12.0, −5.5) | 0.3 (0.2, 0.4) | 0 (−0.04, 0.04) | ||
P trend d | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.96 | ||
Moderate activity (hours/day) | ||||||||
< 2.0 | 15,104 | 38.8 | Reference | Reference | Reference | Reference | Reference | Reference |
2.0 to 4.9 | 12,300 | 31.6 | −2.4 (−3.2, −1.7) | −0.3 (−1.1, 0.5) | −43.3 (−54.1, −32.5) | −4.8 (−13.3, 3.6) | 0.1 (0, 0.2) | 0 (−0.1, 0.1) |
5.0 to 6.9 | 5,729 | 14.7 | −1.1 (−2.0, −0.1) | −1.0 (−2.1, 0) | −27.6 (−41.5, −13.8) | 3.1 (−7.8, 14.0) | 0.1 (0. 0.3) | −0.2 (−0.3, 0) |
≥ 7.0 | 5,780 | 14.9 | −1.0 (−1.9, 0) | −1.9 (−2.9, −0.9) | −63.1 (−77.0, −49.2) | −5.1 (−15.9, 5.7) | 0.7 (0.5, 0.8) | −0.1 (−0.2, 0.1) |
P global b | <0.001 | <0.001 | <0.001 | 0.41 | <0.001 | 0.03 | ||
For every 1 h/day increasec | −0.1 (−0.2, 0.02) | −0.3 (−0.4, −0.1) | −7.9 (−9.6, −6.2) | −0.5 (−1.8, 0.8) | 0.1 (0.07, 0.1) | −0.02 (−0.03, 0) | ||
P trend d | 0.12 | <0.001 | <0.001 | 0.44 | <0.001 | 0.09 | ||
Vigorous activity (hours/day) | ||||||||
< 0.25 | 28,559 | 73.4 | Reference | Reference | Reference | Reference | Reference | Reference |
0.25 to 0.49 | 6,237 | 16.0 | −2.6 (−3.5, −1.7) | −2.6 (−3.5, −1.6) | −145.1 (−156.6, −133.6) | −43.1 (−52.1, −34.1) | 1.2 (1.1, 1.4) | 0.2 (0.1, 0.4) |
0.5 to 0.9 | 3,226 | 8.3 | −4.9 (−6.0, −3.8) | −3.5 (−4.7, −2.3) | −163.2 (−178.1, −148.3) | −64.5 (−76.5, −52.5) | 1.2 (1.0, 1.3) | 0.4 (0.2, 0.6) |
≥ 1.0 | 891 | 2.3 | −5.3 (−7.4, −3.3) | −3.1 (−5.3, −1.0) | −134.9 (−164.0, −105.9) | −60.6 (−82.9, −38.4) | 0.9 (0.6, 1.3) | 0.6 (0.3, 0.9) |
P global b | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | ||
For every 1 h/day increasec | −5.6 (−6.5, −4.6) | −3.9 (−4.9, −2.9) | −181.4 (−199.9, −162.8) | −62.7 (−75.6, −49.9) | 1.3 (1.1, 1.5) | 0.4 (0.2, 0.6) | ||
P trend d | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | ||
Recreational activity (hours/day) | ||||||||
< 0.5 | 2,282 | 5.9 | Reference | Reference | Reference | Reference | Reference | Reference |
0.5 to 0.9 | 5,170 | 13.3 | −0.5 (−2.1, 1.0) | −0.7 (−2.3, 1.0) | −91.2 (−115.3, −67.0) | −40.4 (−59.7, −21.2) | 0.7 (0.4, 0.9) | 0.2 (0, 0.4) |
1.0 to 2.9 | 20,860 | 53.6 | −2.5 (−3.9, −1.2) | −1.6 (−3.0, −0.1) | −138.0 (−159.5, −116.6) | −49.4 (−66.7, −32.2) | 1.0 (0.8, 1.2) | 0.3 (0.1, 0.5) |
≥ 3.0 | 10,601 | 27.2 | −4.3 (−5.7, −2.9) | −2.5 (−4.0, −1.0) | −160.7 (−183.0, −138.4) | −50.5 (−68.6, −32.5) | 1.1 (0.9, 1.3) | 0.3 (0.1, 0.5) |
P global b | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.02 | ||
For every 1 hour/day increasec | −0.9 (−1.1, −0.7) | −0.5 (−0.7, −0.3) | −19.3 (−22.1, −16.6) | −4.4 (−6.7, −2.1) | 0.1 (0.08, 0.1) | 0.02 (0, 0.05) | ||
P trend d | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.09 |