Table 1.
Univariate analysis of risk factors for rotator cuff tears.
| Characteristic | Non-RCT (n = 161) | RCT (n = 193) | Univariate analysis | |
|---|---|---|---|---|
| Χ2/t/Z-test | p | |||
| Sex (n, %) | 0.153 | 0.70 | ||
| Male | 56 (34.78) | 71 (36.79) | ||
| Female | 105 (65.22) | 122 (63.21) | ||
| Age (years, mean ± sd) | 56.92 ± 9.01 | 61.95 ± 9.60 | −5.05 | 0.000 |
| Age (years, n, %) | −4.71 | 0.000 | ||
| <50 | 35 (21.74) | 21 (10.88) | ||
| 50 ~ 59 | 63 (39.13) | 48 (24.87) | ||
| ≥60 | 63 (39.13) | 124 (64.24) | ||
| BMI [kg/m2, M (P75, P25)] | 23.40 (25.39, 21.28) | 24.02 (26.20, 22.06) | −2.26 | 0.024 |
| BMI (kg/m2, n, %) | −2.10 | 0.036 | ||
| <18.5 | 9 (5.59) | 6 (3.11) | ||
| 18.5 ~ 23.99 | 86 (53.42) | 89 (46.11) | ||
| 24 ~ 27.99 | 54 (33.54) | 75 (38.86) | ||
| ≥28 | 12 (7.45) | 23 (11.92) | ||
| Smoking (n, %) | 0.001 | 0.97 | ||
| Yes | 19 (11.80) | 23 (11.92) | ||
| No | 142 (88.20) | 170 (88.08) | ||
| Alcohol drinking (n, %) | 1.541 | 0.22 | ||
| Yes | 10 (6.21) | 19 (9.84) | ||
| No | 151 (93.79) | 174 (90.16) | ||
| Hypertension (n, %) | 14.19 | 0.000 | ||
| Yes | 30 (18.63) | 71 (36.79) | ||
| No | 131 (81.37) | 122 (63.21) | ||
| Type 2 diabetes mellitus (n, %) | 2.56 | 0.11 | ||
| Yes | 20 (12.42) | 36 (18.65) | ||
| No | 141 (87.58) | 157 (81.35) | ||
| Coronary heart disease (n, %) | 4.83 | 0.028 | ||
| Yes | 3 (1.86) | 13 (6.74) | ||
| No | 158 (98.14) | 180 (93.26) | ||
| History of shoulder trauma (n, %) | 40.18 | 0.000 | ||
| Yes | 18 (11.18) | 80 (41.45) | ||
| No | 143 (88.82) | 113 (58.55) | ||
| Hyperuricemia (n, %) | 3.06 | 0.08 | ||
| Yes | 13 (8.07) | 27 (13.99) | ||
| No | 148 (91.93) | 166 (86.01) | ||
| Hyperlipidemia (n, %) | 5.04 | 0.025 | ||
| Yes | 17 (10.56) | 37 (19.17) | ||
| No | 144 (89.44) | 156 (80.83) | ||
| Type III acromion (n, %) | 6.27 | 0.012 | ||
| Yes | 50 (31.06) | 85 (44.04) | ||
| No | 111 (68.94) | 108 (55.96) | ||
| CSA [°, M (P75, P25)] | 35.41 (39.10, 31.37) | 38.00 (40.80, 34.67) | −4.78 | 0.000 |
| CSA (n, %) | −4.45 | 0.000 | ||
| <30° | 22 (13.66) | 7 (3.63) | ||
| 30–35° | 55 (34.16) | 44 (22.80) | ||
| ≥35° | 84 (52.17) | 142 (73.58) | ||
| WBC [109/L M (P75, P25)] | 5.91 (6.88, 5.05) | 6.11 (7.40, 5.30) | −1.52 | 0.128 |
| HB[g/L, M (P75, P25)] | 136.00 (145.00, 128.00) | 135.00 (145.50, 126.00) | −0.628 | 0.53 |