Table 6 Simple correlations and multiple regression multiple regression analyses mapping NDI data to EQ-5D with CLAD method
From: Mapping the neck disability index to SF-6D in patients with chronic neck pain
Predictors | Full model | Trimmed model | ||
|---|---|---|---|---|
Estimate (β) | p-value | Estimate (β) | p-value | |
Total score of 10 items | ||||
Intercept | 0.5927 | <0.0001 | NA | NA |
Total score | -0.002599 | 0.0003276 | NA | NA |
Pain intensity item | ||||
Intercept | 0.5587 | <0.0001 | NA | NA |
Score | -0.01153 | 0.0622 | NA | NA |
Personal care item | ||||
Intercept | 0.5963 | <0.0001 | NA | NA |
Score | -0.03619 | <0.0001 | NA | NA |
Lifting item | ||||
Intercept | 0.5591 | <0.0001 | NA | NA |
Score | -0.01535 | 0.01851 | NA | NA |
Reading item | ||||
Intercept | 0.5727 | <0.0001 | NA | NA |
Score | -0.01755 | 0.0116 | NA | NA |
Headaches item | ||||
Intercept | 0.5727 | <0.0001 | NA | NA |
Score | -0.01755 | 0.01074 | NA | NA |
Concentration item | ||||
Intercept | 0.5488 | <0.0001 | NA | NA |
Score | -0.0113 | 0.01967 | NA | NA |
Work item | ||||
Intercept | 0.5663 | <0.0001 | NA | NA |
Score | -0.01617 | 0.001198 | NA | NA |
Driving item | ||||
Intercept | 0.58 | <0.0001 | NA | NA |
Score | -0.0222 | 0.00195 | NA | NA |
Sleeping item | ||||
Intercept | 0.534 | <0.0001 | NA | NA |
Score | -0.006 | 0.314 | NA | NA |
Recreation item | ||||
Intercept | 0.5957 | <0.0001 | NA | NA |
Score | -0.02382 | <0.0001 | NA | NA |
All items in one model | ||||
Intercept | 0.5827 | <0.0001 | 0.60176522 | <0.0001 |
Pain intensity | 0.0256 | 0.009326 | 0.01455149 | 0.04359 |
Personal care (Washing, Dressing, etc.) | -0.0210 | 0.08008 | -0.02685645 | 0.003282 |
Lifting | 0.0014 | 0.8657 | NS | NS |
Reading | -0.0009 | 0.9268 | NS | NS |
Headaches | -0.0013 | 0.8531 | NS | NS |
Concentration | -0.0102 | 0.3117 | NS | NS |
Work | -0.0113 | 0.3033 | NS | NS |
Driving | 0.0049 | 0.4981 | NS | NS |
Sleepinga | 0.0210 | 0.003691 | 0.02037582 | 0.003771 |
Recreation | -0.0348 | 0.0003551 | -0.03972382 | <0.0001 |