Table 1 Characteristics of participants
Characteristics | Total sample (N = 121) | Male (n1 = 52) | Female (n2 = 69) | P valuea |
|---|---|---|---|---|
Age (years; mean ± SD) | 41.2 ± 14.3 | 41.0 ± 14.9 | 43.8 ± 15.4 | 0.337 |
Range | 16–78 | 16–72 | 18–78 | |
Age groups, number (%) | 0.844 | |||
≦20 | 15 (12.4) | 8 (15.5) | 7 (10.2) | |
20–40 | 36 (29.8) | 15 (28.8) | 21 (30.4) | |
40–60 | 44 (36.4) | 19 (36.5) | 25 (36.2) | |
≧60 | 26 (21.5) | 10 (19.2) | 16 (23.2) | |
Affected side, number (%) | 0.855 | |||
Right | 65 (53.7) | 28 (53.8) | 36 (52.2) | |
Left | 56 (46.3) | 24 (46.2) | 33 (47.8) | |
BMI (kg/m2; mean ± SD) | 25.6 ± 4.1 | 24.7 ± 4.1 | 26.1 ± 4.3 | 0.081 |
Symptom duration (months; mean ± SD) | 15.6 ± 6.0 | 14.8 ± 5.4 | 15.9 ± 6.4 | 0.343 |
Range | 1–36 | 1–33 | 1–36 |