Table 2.
Linear Regression Analysis Examining Predictors of the Visual Analogue Scale (n = 150)*
| Predictor Variable |
Beta-coefficient |
P value |
Beta-coefficient |
P value |
|---|---|---|---|---|
| (Univariable) | (Multivariable) | |||
| Age (years) |
-0.08 |
0.68 |
0.11 |
0.52 |
| Female sex |
13.4 |
0.03 |
8.34 |
0.16 |
| Body mass index (kg/m2) |
-0.57 |
0.008 |
-0.42 |
0.03 |
| Time on Waitlist (days) |
-0.01 |
0.32 |
|
|
| Smoker (former or current) |
10.3 |
0.03 |
|
|
| Married or common law (vs. all other categories) |
-2.9 |
0.42 |
|
|
| Post-secondary graduate (vs. all other education levels) |
4.7 |
0.24 |
|
|
| Low income, ≤$30, 000 (vs. all other income categories) |
-3.45 |
0.47 |
|
|
| Employed full or part-time (vs. all other categories) |
17.7 |
<0.0001 |
13.7 |
0.0003 |
| Type 2 diabetes |
-3.6 |
0.34 |
|
|
| Hypertension |
-5.3 |
0.17 |
|
|
| Dyslipidemia |
-2.7 |
0.51 |
|
|
| Coronary artery disease |
-6.4 |
0.48 |
|
|
| Sleep apnea |
-12.9 |
0.0009 |
-6.55 |
0.095 |
| Gastroesophageal reflux |
-7.2 |
0.05 |
|
|
| Osteoarthritis |
-9.4 |
0.02 |
|
|
| Polycystic ovarian syndrome |
1.78 |
0.74 |
|
|
| Hypothyroidism |
-0.37 |
0.93 |
|
|
| Depression |
-12.18 |
0.0009 |
-10.28 |
0.003 |
| Fibromyalgia |
-8.73 |
0.12 |
|
|
| Anxiety | -6.54 | 0.07 |
*Predictor variables with p values < 0.2 were candidates for final model. Age, BMI and sex are forced in final model, which was constructed using a backward selection procedure.