Table 4 The estimates of regression coefficients and standard errors for modeling outcomes of VAS for pain and WOMAC subscales
From: Duhuo Jisheng Tang for treating osteoarthritis of the knee: a prospective clinical observation
Variable definition | WOMAC subscalesb | |||||||
|---|---|---|---|---|---|---|---|---|
VAS for paina | ||||||||
Pain | Stiffness | Physical function | ||||||
Coeff. | S.E. | Coeff. | S.E. | Coeff. | S.E. | Coeff. | S.E. | |
Severity at baseline | -0.40*** | 0.08 | -0.42*** | 0.07 | -0.51*** | 0.07 | -0.34*** | 0.07 |
Mean score improvement at week 2 vs. week 1 | -6.16*** | 1.84 | -4.62** | 1.55 | -8.52*** | 2.11 | -4.24** | 1.34 |
Mean score improvement at week 4 vs. week 1 | -5.13*** | 1.84 | -5.28*** | 1.55 | -7.22*** | 2.11 | -4.04** | 1.34 |
Age | 0.00 | 0.24 | 0.21 | 0.20 | 0.33 | 0.23 | 0.39* | 0.18 |
Gender (female vs. male) | -15.74 | 19.73 | 3.83 | 16.67 | 2.18 | 19.38 | 13.26 | 15.06 |
Body Mass Index (<25 vs. >= 25) | -0.68 | 3.44 | -1.03 | 2.92 | -1.25 | 3.44 | -1.19 | 2.65 |
Rescue drug (used vs. not used) | 6.03 | 3.38 | 4.27 | 2.85 | 3.79 | 3.65 | 4.86 | 2.52 |
Aversion to cold (mild vs. moderate or severe)c | 3.86 | 3.94 | 7.59 | 3.31 | 8.12* | 3.88 | 3.93 | 3.09 |
Flaccidity of lower back/knee (mild vs. moderate or severe) c | 3.03 | 3.46 | 2.03 | 2.87 | -1.36 | 3.34 | 0.65 | 2.63 |