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Table 1 Baseline characteristics of the sample (n = 181)

From: Mechanical wrist traction as a non-invasive treatment for carpal tunnel syndrome: a randomized controlled trial

 

Total (n = 181)

Intervention (n = 94)

Care as usual (n = 87)

p

Mean (SD)

n (%)

Mean (SD)

n (%)

Mean (SD)

n (%)

t

X 2

Demographic features

 Age (in years)

58.1 (13.0)

 

59.0 (12.4)

 

57.2 (13.7)

 

.339

 

 Sex

       

.454

  Male

 

59 (32.6)

 

33 (35.1)

 

26 (29.9)

  

  Female

 

122 (67.4)

 

61 (64.9)

 

61 (70.1)

  

 Educational level

       

.809

  Low

 

149 (82.3)

 

78 (83.0)

 

71 (81.6)

  

  High

 

32 (17.7)

 

16 (17.0)

 

16 (18.4)

  

 Marital status

       

.560

  With partner

 

138 (76.2)

 

70 (74.5)

 

68 (78.2)

  

CTS-related

 Duration of complaints

       

.212

   < 3 years

 

136 (75.4)

 

67 (71.3)

 

69 (79.3)

  

   > 3 years

 

45 (24.9)

 

27 (28.7)

 

18 (20.7)

  

 Dominant hand involved?

       

.950

  No

 

35 (19.3)

 

19 (20.2)

 

16 (18.4)

  

  Yes

 

53 (29.3)

 

27 (28.7)

 

26 (29.9)

  

  Both hands

 

93 (51.4)

 

48 (51.1)

 

45 (51.7)

  

 Direct relative with CTS

 

54 (29.8)

 

28 (29.8)

 

26 (29.9)

 

.989

 Paid hand labor?

       

.605

  No

 

113 (62.4)

 

57 (60.6)

 

56 (66.4)

  

  Heavy

 

68 (37.6)

 

37 (39.4)

 

31 (35.6)

  

 SSS score

2.86 (0.77)

 

2.89 (0.80)

 

2.82 (0.74)

 

.589

 

 FSS score

2.34 (0.89)

 

2.39 (0.92)

 

2.28 (0.86)

 

.374

 

 BCTQ score

2.64 (0.76)

 

2.68 (0.79)

 

2.59 (0.72)

 

.421

 

Lifestyle habits

 Smoking

 

29 (16.0)

 

16 (17.0)

 

13 (14.9)

 

.703

 Alcohol

 

43 (23.8)

 

24 (25.5)

 

19 (21.8)

 

.560

 BMI

28.8 (5.08)

 

29.2 (5.24)

 

28.4 (4.89)

 

.296

 
  1. BMI Body Mass Index, CTS carpal tunnel syndrome, BCTQ Boston Carpal Tunnel Questionnaire, FSS Functional Status Scale, SD standard deviation, SSS Symptom Severity Scale