Table 2. Patient Demographics and Radiologic Parameters of Subgroups.
| Variable | Group A (n = 239) | Group B (n = 117) | p-value | ||
|---|---|---|---|---|---|
| Age (yr) | 62.0 ± 8.4 | 61.6 ± 9.9 | 0.715 | ||
| Sex (men : women) | 108 : 131 | 41 : 76 | 0.068 | ||
| Side (right : left) | 176 : 63 | 84 : 33 | 0.712 | ||
| BMI (kg/m2) | 24.6 ± 2.3 | 24.2 ± 2.8 | 0.248 | ||
| Comorbidity | |||||
| HTN | 77 (32.2) | 33 (28.2) | 0.442 | ||
| DM | 43 (18.0) | 25 (21.4) | 0.447 | ||
| Hyperlipidemia | 20 (8.4) | 7 (6.0) | 0.425 | ||
| Smoking | 43 (18.0) | 28 (23.9) | 0.188 | ||
| Alcohol | 66 (27.6) | 35 (29.9) | 0.651 | ||
| Parameter | |||||
| Lateral coverage | |||||
| LAA (°) | 75.0 ± 7.0 | 76.4 ± 7.0 | 0.089 | ||
| CSA (°) | 34.5 ± 3.4 | 30.8 ± 3.4 | < 0.001* | ||
| Anteroposterior coverage | |||||
| AT (°) | 29.2 ± 5.3 | 29.5 ± 4.6 | 0.665 | ||
| APCI | 0.83 ± 0.10 | 0.75 ± 0.08 | < 0.001* | ||
| AHI (mm) | 6.3 ± 2.0 | 7.8 ± 1.8 | < 0.001* | ||
| Anterior glenoid coverage† (°) | –3.4 ± 8.4 | –7.9 ± 6.3 | < 0.001* | ||
| Posterior glenoid coverage† (°) | 71.2 ± 8.4 | 68.9 ± 7.8 | 0.014* | ||
Values are presented as mean ± standard deviation or number (%). Group A: patients diagnosed with rotator cuff tear, Group B: patients diagnosed with concentric osteoarthritis and calcific tendinitis without rotator cuff tear.
BMI: body mass index, HTN: hypertension, DM: diabetes mellitus, LAA: lateral acromial angle, CSA: critical shoulder angle, AT: acromial tilt, APCI: anteroposterior coverage index, AHI: acromiohumeral interval.
*Statistically significant. †According to the classification by Beeler et al.5)