Table 1

Characteristics of patient and control groupsa
Characteristics Cases (n = 102) Controls (n = 101) P-value
Age 73.7 ± 8.7 72.4 ± 9.3 0.3
BMI 23.3 ± 4.2 24.9 ± 4.5 0.03
Gender
  Male 47 (46.1) 49 (48.5) 0.73
  Female 55 (53.9) 52 (51.5)
Residence 0.14
  Own home 95 (94.1) 89 (88.1)
  Relatives home 6 (5.9) 12 (11.9)
Comorbidities
  0 27 (26.5) 23 (22.8) 0.65
  1-2 55 (53.9) 61 (60.4)
  ≥ 3 20 (19.6) 17 (16.8)

aResults expressed as mean ± standard deviation, and number (percentage) as appropriate.

Valizadeh et al.

Valizadeh et al. BMC Musculoskeletal Disorders 2012 13:143   doi:10.1186/1471-2474-13-143

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