Table 1.
Characteristics of HV and control groups with comparison of SF-36v2® subscales and physical activity levels (mean ± SD, unless otherwise stated)
| HV group (n = 30) | Control group (n = 30) | Mean difference (95% CI) | |
|---|---|---|---|
| Subject characteristics | |||
| Men/Women (n) |
5/25 |
5/25 |
NA |
| Age (years) |
44.5±15.2 |
44.2±15.3 |
0.3 (−7.6 to 8.2) |
| BMI (kg/m2) |
24.2±3.4 |
24.7±4.2 |
−0.5 (−2.5 to 1.5) |
| HV angle (°)† |
29.1±7.8 |
9.8±3.5 |
19.3 (16.2 to 22.4)** |
| First MTPJ OA (n (right/left)) |
1 (1/1) |
2 (2/1) |
NA |
| SF-36v2® (score range 0 – 100) | |||
| Physical functioning |
86.6±19.3 |
93.2±9.7 |
−6.6 (−14.5 to 1.3) |
| Role-physical |
87.5±17.9 |
93.3±13.7 |
−5.8 (−14.1 to 2.4) |
| Role-emotional |
93.1±11.4 |
93.9±11.1 |
−0.83 (−6.7 to 5.0) |
| Bodily pain |
75.0±18.8 |
81.8±14.0 |
−6.8 (−15.4 to 1.8) |
| Vitality |
59.4±17.3 |
67.1±12.2 |
−7.7 (−15.6 to 0.11) |
| Mental health |
79.7±10.8 |
83.5±11.0 |
−3.9 (−9.5 to 1.8) |
| Social functioning |
91.3±12.8 |
89.2±15.3 |
2.1 (−5.2 to 9.4) |
| General health |
78.5±17.2 |
78.8±13.1 |
−0.3 (−8.2 to 7.6) |
| Physical activity (score range 1 – 5) | |||
| Work |
2.62±0.33 |
2.45±0.32 |
0.17 (0.0 to 0.34)* |
| Sport |
2.92±0.94 |
2.23±0.65 |
0.69 (0.28 to 1.1)* |
| Leisure | 2.87±0.63 | 2.88±0.55 | −0.01 (−0.32 to 0.30) |
Abbreviations: HV = hallux valgus; CI = confidence interval; BMI = body mass index; MTPJ = metatarsophalangeal joint; OA = osteoarthritis; SF-36v2® = Short Form 36 Health Survey, version 2.
* P < 0.05.
** P < 0.001.
† Only one foot included in analysis (HV group: worst foot; control group: randomly chosen).