Table 5.
Evaluating the relationship between BMI and fatty infiltration by rotator cuff tendon location in the ROW cohort.
| Tear location | Body mass index | FI/No FI | Unadjusted | Adjusted |
|---|---|---|---|---|
|
| ||||
| OR (95% CI) | OR (95% CI) | |||
| Supraspinatus | BMI (continuous) | 49/105 | 1.02 (0.96, 1.08) | OR (95% CI)1.04 (0.98, 1.11) |
| BMI <25 | 7/26 | 1.00 (Ref) | 1.00 (Ref) | |
| BMI 25–30 | 22/32 | 2.55 (0.94, 6.91) | 5.26 (1.60, 17.33) | |
| BMI > 30 | 20/47 | 1.58 (0.59, 4.23) | 3.06 (0.98, 9.55) | |
| Infraspinatus | BMI (continuous) | 44/109 | 1.06 (1.00, 1.12) | 1.09 (1.01, 1.19) |
| BMI <25 | 4/29 | 1.00 (Ref) | 1.00 (Ref) | |
| BMI 25–30 | 18/36 | 3.63 (1.10, 11.90) | 3.20 (0.66, 15.66) | |
| BMI > 30 | 22/44 | 3.63 (1.13, 11.61) | 7.10 (1.41, 35.85) | |
| Subscapularis | BMI (continuous) | 55/127 | 1.08 (1.01, 1.16) | 1.12 (1.03, 1.21) |
| BMI <25 | 1/32 | 1.00 (Ref) | 1.00 (Ref) | |
| BMI 25–30 | 11/42 | 8.38 (1.03, 68.31) | 5.90 (0.64, 53.95) | |
| BMI > 30 | 13/53 | 7.85 (0.98, 62.87) | 8.99 (1.07, 75.69) | |
| Teres Minor | BMI (continuous) | 16/136 | 1.08 (1.00, 1.17) | 1.11 (1.02, 1.21) |
| BMI <25 | 2/31 | 1.00 (Ref) | 1.00 (Ref) | |
| BMI 25–30 | 4/49 | 1.27 (0.22, 7.32) | 1.70 (0.28, 10.52) | |
| BMI > 30 | 10/56 | 2.77 (0.57, 13.44) | 3.94 (0.76, 20.60) | |
FI = fatty infiltration defined as absence (0 on Goutallier scale) and presence (Goutallier grades 1 – 4 as infiltration). Odds ratios computed for BMI measures and FI with and without multivariable adjustment by tendon location. For supraspinatus, infraspinatus and subscapularis multivariable models were adjusted for age at MRI, sex, and tear thickness at the corresponding tendon (none, partial tear, or no-tear). Multivariable model for teres minor did not adjust for tear as there were no tears.