Table 2 SF-12 Mental Component Scores at Baseline, 1 year after Total Hip Arthroplasty, and 1-Year Change by quartiles of WOMAC pain and function improvement
From: Improvement in mental health following total hip arthroplasty: the role of pain and function
N | SF-12 MCS Prior to THA Mean (SD) | SF-12 MCS 1 year after THA Mean (SD) | SF-12 MCS 1-Year Change Mean (SD) | |
|---|---|---|---|---|
Improvement WOMAC pain in quartiles | ||||
<30 | 182 | 44.2 (11.1) | 45.1 (10.8) | 0.8 (10.2) |
30–44.9 | 128 | 46.8 (10.7) | 49.1 (9.9) | 2.2 (10.5) |
45–59.9 | 163 | 46.4 (10.3) | 49.4 (9.6) | 3.0 (10.7) |
≥60 | 128 | 41.4 (12.5) | 46.8 (11.2) | 5.5 (11.5) |
Total | 601 | 44.7 (11.3) | 47.5 (10.5) | 2.8 (10.8) |
p-value for linearity (ANOVA) | <0.001 | |||
Improvement WOMAC function in quartiles | ||||
<21 | 128 | 42.3 (10.7) | 42.8 (11.0) | 0.5 (10.4) |
21–38.9 | 155 | 46.2 (11.5) | 47.6 (10.4) | 1.4 (9.3) |
39–53.9 | 157 | 46.4 (10.8) | 49.4 (9.1) | 3.0 (11.4) |
≥54 | 145 | 43.5 (11.4) | 49.1 (10.5) | 5.7 (11.0) |
Total | 585 | 44.7 (11.2) | 47.4 (10.5) | 2.7 (10.7) |
p-value for linearity (ANOVA) | <0.001 |