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 %) | |