Table 3.
Parametres of multivariate multiple linear regressions for predictors of LCQ – Total and Domains Scores
| Model 1 – Dependent variable: LCQ - Total Score Square | |||||||
| The total R2 = 0.397 Durbin-Watson = 1.847 |
Unstandardized Coefficients | Standardized Coefficients | t | p | Change Statistics | ||
| B | SE | Beta | R2 Change | p (F Change) | |||
| Constant | 302.689 | 7.661 | 39.508 | 0.000 | 0.296 | 0.000 (78.865) |
|
| Ln (Borg Scale score) | -78.386 | 8.941 | -0.544 | -8.767 | 0.000 | ||
| Constant | 353.819 | 15.158 | 23.342 | 0.000 | 0.053 | 0.000 (14.920) |
|
| Ln (Borg Scale score) | -58.229 | 10.076 | -0.404 | -5.779 | 0.000 | ||
| Ln (DAL score) | -47.874 | 12.394 | -0.270 | -3.863 | 0.000 | ||
| Constant | 452.927 | 36.950 | 12.258 | 0.000 | 0.029 | 0.004 (8.581) |
|
| Ln (Borg Scale score) | -57.296 | 9.877 | -0.398 | -5.801 | 0.000 | ||
| Ln (DAL score) | -49.692 | 12.159 | -0.280 | -4.087 | 0.000 | ||
| Ln (sACE) | -26.798 | 9.148 | -0.172 | -2.929 | 0.004 | ||
| Constant | 540.867 | 52.321 | 10.337 | 0.000 | 0.018 | 0.020 (5.503) |
|
| Ln (Borg Scale score) | -53.790 | 9.871 | -0.373 | -5.450 | 0.000 | ||
| Ln (DAL score) | -37.612 | 13.068 | -0.212 | -2.878 | 0.004 | ||
| Ln (sACE) | -25.750 | 9.048 | -0.165 | -2.846 | 0.005 | ||
| Ln (FAS mental score) | -47.073 | 20.067 | -0.159 | -2.346 | 0.020 | ||
| Model 2 – Dependent variable: LCQ - Physical Domain Score Square | |||||||
| The total R2 = 0.394 Durbin-Watson = 1.793 |
Unstandardized Coefficients | Standardized Coefficients | t | p | Change Statistics | ||
| B | SE | Beta | R2 Change | p (F Change) | |||
| Constant | 31.252 | 0.782 | 39.971 | 0.000 | 0.289 | 0.000 (74.972) |
|
| Ln (Borg Scale score) | -7.887 | 0.911 | -0.538 | -8.659 | 0.000 | ||
| Constant | 37.088 | 1.528 | 24.270 | 0.000 | 0.067 | 0.000 (19.146) |
|
| Ln (Borg Scale score) | -5.599 | 1.014 | -0.382 | -5.521 | 0.000 | ||
| Ln (DAL score) | -5.470 | 1.250 | -0.303 | -4.376 | 0.000 | ||
| Constant | 45.370 | 3.762 | 12.061 | 0.000 | 0.020 | 0.017 (5.777) |
|
| Ln (Borg Scale score) | -5.512 | 1.002 | -0.376 | -5.502 | 0.000 | ||
| Ln (DAL score) | -5.630 | 1.236 | -0.312 | -4.555 | 0.000 | ||
| Ln (sACE) | -2.237 | 0.931 | -0.141 | -2.404 | 0.017 | ||
| Constant | 54.106 | 5.331 | 10.149 | 0.000 | 0.018 | 0.023 (5.230) |
|
| Ln (Borg Scale score) | -5.164 | 1.002 | -0.352 | -5.154 | 0.000 | ||
| Ln (DAL score) | -4.429 | 1.330 | -0.245 | -3.330 | 0.001 | ||
| Ln (sACE) | -2.133 | 0.921 | -0.134 | -2.316 | 0.022 | ||
| Ln (FAS mental score) | -4.676 | 2.045 | -0.155 | -2.287 | 0.023 | ||
| Model 3 – Dependent variable: LCQ - Psychological Domain Score Square | |||||||
| The total R2 = 0.329 Durbin-Watson = 1.886 |
Unstandardized Coefficients | Standardized Coefficients | t | p | Change Statistics | ||
| B | SE | Beta | R2 Change | p (F Change) | |||
| Constant | 33.967 | 0.932 | 36.449 | 0.000 | 0.259 | 0.000 (64.371) |
|
| Ln(Borg Scale score) | -8.710 | 1.086 | -0.509 | -8.023 | 0.000 | ||
| Model 3 – Dependent variable: LCQ - Psychological Domain Score Square | |||||||
| Constant | 39.043 | 1.865 | 20.930 | 0.000 | 0.037 | 0.002 (9.723) |
|
| Ln (Borg Scale score) | -6.720 | 1.238 | -0.393 | -5.428 | 0.000 | ||
| Ln (DAL score) | -4.758 | 1.526 | -0.226 | -3.118 | 0.002 | ||
| Constant | 51.463 | 4.555 | 11.299 | 0.000 | 0.033 | 0.003 (8.861) |
|
| Ln (Borg Scale score) | -6.590 | 1.213 | -0.385 | -5.432 | 0.000 | ||
| Ln (DAL score) | -4.998 | 1.496 | -0.237 | -3.340 | 0.001 | ||
| Ln (sACE) | -3.354 | 1.127 | -0.181 | -2.977 | 0.003 | ||
| Model 4 – Dependent variable: LCQ - Social Domain Score Square | |||||||
| The total R2 = 0.348 Durbin-Watson = 1.854 |
Unstandardized Coefficients | Standardized Coefficients | t | p | Change Statistics | ||
| B | SE | Beta | R2 Change | p (F Change) | |||
| Constant | 36.256 | 0.998 | -0.494 | 36.324 | 0.000 | 0.244 | 0.000 (59.399) |
| Ln (Borg Scale score) | -8.961 | 1.163 | -7.707 | 0.000 | |||
| Constant | 42.951 | 1.970 | -0.349 | 21.799 | 0.000 | 0.058 | 0.000 (15.159) |
| Ln (Borg Scale score) | -6.337 | 1.308 | -0.281 | -4.846 | 0.000 | ||
| Ln (DAL score) | -6.276 | 1.612 | -3.894 | 0.000 | |||
| Constant | 56.388 | 5.533 | -0.321 | 10.191 | 0.000 | 0.025 | 0.010 (6.724) |
| Ln (Borg Scale score) | -5.819 | 1.303 | -0.202 | -4.466 | 0.000 | ||
| Ln (DAL score) | -4.517 | 1.726 | -0.185 | -2.617 | 0.010 | ||
| Ln (FAS mental score) | -6.890 | 2.657 | -2.593 | 0.010 | |||
| Constant | 66.305 | 6.846 | -0.316 | 9.685 | 0.000 | 0.021 | 0.017 (5.771) |
| Ln (Borg Scale score) | -5.732 | 1.287 | -0.215 | -4.454 | 0.000 | ||
| Ln (DAL score) | -4.799 | 1.708 | -0.177 | -2.810 | 0.005 | ||
| Ln (FAS mental score) | -6.579 | 2.626 | -0.145 | -2.505 | 0.013 | ||
| Ln (sACE) | -2.842 | 1.183 | -2.402 | 0.017 | |||
Ln = Natural logarithm; sACE = Serum Angiotensin Converting Enzyme; Borg = Borg dyspnea category-ratio-10 scale; FAS = Fatigue Assessment Scale; DAL = List of Daily Activities; LCQ = Leicester Cough Questionnaire; SE = Standard Error