| Least square mean (95% CI) for Cobb angle of kyphosis (degrees) within tertile of muscle measure | |||
---|---|---|---|---|
Muscle volume tertile (from lowest to highest) | 1 | 2 | 3 | p-trend |
Full analytic sample a | ||||
MODEL 1 | ||||
Total paraspinal muscle volume(includes paraspinal muscle and IMAT volume combined) | 38.2 (36.4, 40.1) | 38.2 (36.4, 40.0) | 36.1 (34.2, 38.0) | 0.12 |
MODEL 2 | ||||
Paraspinal Muscle Volume | 38.8 (36.9 – 40.7) | 37.3 (35.5 – 39.2) | 36.3 (34.4 – 38.2) | 0.08 |
Paraspinal IMAT Volume | 37.6 (35.7 – 39.5) | 37.4 (35.5 – 39.2) | 37.5 (35.6 – 39.4) | 0.96 |
Among those with no prevalent vertebral fracture b | ||||
MODEL 1 | ||||
Total paraspinal muscle volume (includes paraspinal muscle and IMAT volume combined) | 37.5 (35.6, 39.4) | 37.8 (35.9, 39.6) | 35.9 (33.9, 37.9) | 0.28 |
MODEL 2 | ||||
Paraspinal Muscle Volume | 38.5 (36.6 – 40.5) | 36.6 (34.7 – 38.5) | 36.1 (34.2 – 38.1) | 0.10 |
Paraspinal IMAT Volume | 36.9 (34.9 – 38.8) | 37.3 (35.4– 39.1) | 37.1 (35.1 – 39.1) | 0.87 |
Among those with BMI < 30 kg/m 2 a | ||||
MODEL 1 | ||||
Total paraspinal muscle volume (includes paraspinal muscle and IMAT volume combined) | 39.0 (36.9, 41.2) | 38.9 (36.9, 40.8) | 35.9 (33.8, 38.0) | 0.04 |
MODEL 2 | ||||
Paraspinal Muscle Volume | 40.0 (37.8 – 42.1) | 37.6 (35.7 - 39.6) | 36.3 (34.2 – 38.4) | 0.02 |
Paraspinal IMAT Volume | 38.5 (36.3 - 40.6) | 38.1 (36.1 - 40.1) | 37.3 (35.2 - 39.5) | 0.48 |