Table 2.
The relationship between the Paretian Classification of Health Change (PCHC) and mean changes in EQ-VAS scores, EQ-5D index, OHS, OKS and VV score
| PCHC category | Mean change in | ||||
|---|---|---|---|---|---|
| EQ-VAS | EQ-5D Index | OHS | OKS | VV | |
| No EQ-5D problems | −0.499 (−0.713, 0.286) | 0 | 7.11 (5.63, 8.60) | 8.28 (6.80, 9.76) | −6.58 (−6.86, −6.31) |
| No change | −2.17 (−2.45, −1.89) | 0 | 10.5 (10.2, 10.8) | 8.16 (7.97, 8.36) | −5.23 (−5.63, −4.84) |
| Improved | 7.377 (7.26, 7.50) | 0.410 (0.409, 0.412) | 21.9 (21.8, 22.1) | 17.8 (17.7, 17.9) | −10.2 (−10.0, −10.5) |
| Worsen | −9.24 (−9.55, −8.94) | −0.212 (−0.216, −0.210) | 4.36 (3.99, 4.749) | 2.54 (2.31, 2.78) | −2.75 (−3.20, −2.31) |
| Mixed change | −1.48 (−1.83, −1.13) | 0.168 (0.164, 0.1734) | 15.6 (15.3, 15.9) | 11.7 (11.5, 12.0) | −7.04 (−7.74, −6.35) |
“No change” excludes those with no EQ-5D problems both before and after surgery
95 % confidence interval in parentheses