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Table 1 Characteristics of HV and control groups with comparison of SF-36v2® subscales and physical activity levels (mean ± SD, unless otherwise stated)

From: Foot pain and functional limitation in healthy adults with hallux valgus: a cross-sectional study

  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)
  1. 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.
  2. * P < 0.05.
  3. ** P < 0.001.
  4. † Only one foot included in analysis (HV group: worst foot; control group: randomly chosen).