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Table 1 Demographic characteristics of the sample of subjects scheduled for TKA by WOMAC pain group

From: Association between activity limitations and pain in patients scheduled for total knee arthroplasty

 

WOMAC Pain Group

p-value (trend)

Low

Medium

High

Overall

(0–25)

(26–40)

(41–100)

n = 43 (21 %)

n = 68 (34 %)

n = 91 (45 %)

n = 202

Age: mean (SD)

68 (7)

66 (8)

64 (7)

65 (8)

0.001

Female: no. (%)

16 (37 %)

38 (56 %)

61 (67 %)

115 (57 %)

0.001

BMI: mean (SD)

29 (5)

31 (6)

32 (6)

31 (6)

0.04

Race

    

0.06

 White

41 (95 %)

63 (93 %)

78 (86 %)

182 (90 %)

 

 Non-White

2 (5 %)

5 (7 %)

13 (14 %)

20 (10 %)

 

Education: no. (%)

    

0.04

 Graduated from college

34 (79 %)

48 (71 %)

56 (62 %)

138 (68 %)

 

 Did not graduate from college

9 (21 %)

20 (29 %)

35 (38 %)

64 (32 %)

 

Employment Status: no. (%)

    

0.34

 Employed full- or part-time

24 (57 %)

40 (60 %)

44 (50 %)

108 (55 %)

 

 Not working

18 (43 %)

27 (40 %)

44 (50 %)

89 (45 %)