Table 1.
Frequencies of Ultrasound-Diagnosed Rotator Cuff Disorders and Predictive Factors (N = 129 Patients)
| Variable | n/n (%) | Univariate Analysis OR (95% CI) | P Value |
|---|---|---|---|
| No disorder | 24/129 (18.6) | ||
| Rotator cuff disease present | 105/129 (81.4) | ||
| Age ≥40 y | 96/106 (90.6) | 14.93 (5.17–43.14) | <.001 |
| Sex, female | 56/129 (43.4) | 0.89 (0.36–2.16) | .79 |
| Occupational risk | 40/129 (31.0) | 0.88 (0.34–2.26) | .79 |
| Specific disorder | |||
| Calcific tendonitis | 65/129 (50.4) | ||
| With other rotator cuff disorder | 39/65 (60.0) | ||
| Age ≥40 y | 63/106 (59.4) | 15.38 (3.43–69.04) | <.001b |
| Tendinopathy | 37/129 (28.7) | ||
| With other rotator cuff disorder | 28/37 (75.7) | ||
| Age ≥40 y | 33/106 (31.1) | 2.15 (0.68–6.81) | .19b |
| SASD bursitis | 26/129 (20.2) | ||
| With other rotator cuff disorder | 23/26 (88.5) | ||
| Age ≥40 y | 26/106 (24.5) | …a | .004b |
| Partial-thickness tear | 25/129 (19.4) | ||
| With other rotator cuff disorder | 16/25 (64.0) | ||
| Age ≥40 y | 22/106 (20.8) | 1.75 (0.48–6.41) | .56b |
| ACJ-osteoarthritis | 16/129 (12.4) | ||
| With other rotator cuff disorder | 11/16 (68.8) | ||
| Age ≥40 y | 16/106 (15.1) | …a | .07b |
| Full-thickness tear | 4/129 (3.1) | ||
| With other rotator cuff disorder | 4/4 (100) | ||
| Age ≥40 y | 4/106 (3.8) | …a | >.99b |
| Impingement | 21/129 (16.3) | ||
| Age ≥40 y | 20/106 (18.9) | 5.12 (0.65–40.23) | .12b |
Note: One patient had a biceps tendosynovitis.
ACJ = acromioclavicular joint; OR = odds ratio; SASD = subacromial-subdeltoid.
a
Odds ratio not provided; expected count in 1 of the cells is 0.
b
Fisher’s exact test.