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Table 3 The dysfunction index and the bother index score for the patients by age, gender, Body Mass Index, injury location and operation status

From: Reliability and validity of the Chinese version of the Short Musculoskeletal Function Assessment questionnaire in patients with skeletal muscle injury of the upper or lower extremities

 

Dysfunction index

P value

Bother index

P value

Mean (SD)

Mean (SD)

Age groups

    

 18-29 (n = 66)

16.24 (15.78)

<0.001

18.62 (16.22)

0.008

 30-44 (n = 87)

20.44 (16.27)

 

22.46 (18.55)

 

 45-59 (n = 96)

20.41 (15.17)

 

22.81 (18.62)

 

  ≥ 60 (n = 79)

27.86 (15.57)

 

28.74 (18.14)

 

Gender

    

 Male (n = 176)

19.18 (16.38)

0.008

20.70 (17.62)

0.005

 Female (n = 152)

23.92 (15.48)

 

26.32 (18.60)

 

BMI groups

    

 Low weight (n = 19)

23.80 (20.82)

0.856

28.18 (19.31)

0.294

 Normal (n = 218)

21.01 (15.85)

 

23.76 (18.42)

 

 Overweight (n = 57)

21.54 (16.13)

 

21.24 (16.84)

 

 Obesity (n = 31)

19.85 (14.01)

 

19.29 (17.99)

 

Injury locationa

    

 Upper-extremity (n = 76)

14.26 (12.47)

<0.001

18.89 (16.06)

0.016

 Lower-extremityb (n = 252)

23.52 (16.49)

 

24.64 (18.71)

 

Operation status

    

 Yes (n = 149)

17.36 (15.95)

<0.001

19.00 (17.98)

<0.001

 No (n = 179)

24.72 (15.52)

 

26.89 (17.77)

 
  1. Numbers in bold represent P-values which are significant at level 0.05
  2. aPatients with multiple injuries were excluded (n = 11)
  3. bLower-extremity included upper leg/hip/ pelvis, lower leg/knee, and ankle/foot