Table 3 Univariate (t-test or chi-squared) and multivariable logistic regression analyses of factors associated with treatment received using data from study 1.
From: Decision quality instrument for treatment of hip and knee osteoarthritis: a psychometric evaluation
| Â | Surgery | Non-surgical | Univariate | Multivariable | Â |
|---|---|---|---|---|---|
Factor | N = 235 | N = 147 | p | Odds ratio of surgery | 95% CI |
Age (mean years) | 62.7 | 62.7 | 0.95 | 1.02 | 0.99, 1.05 |
Education (% college graduate) | 61.0 | 49.0 | 0.02 | 1.46 | 0.85, 2.51 |
Gender (% female) | 55.8 | 56.5 | 0.83 | 1.20 | 0.71, 2.04 |
Joint (% Knee) | 43.8 | 66.7 | <0.0001 | 0.35 | 0.20, 0.60 |
On a scale of 0 to 10, how important is it to you to... | Â | Â | Â | Â | Â |
   Relieve pain | 9.5 | 8.5 | <0.0001 | 1.21 | 0.98, 1.48 |
Not be limited in what you can do | 9.8 | 8.9 | <0.0001 | 1.58 | 1.18, 2.11 |
Avoid surgery | 3.9 | 6.7 | <0.0001 | 0.81 | 0.75, 0.88 |
Avoid over the counter medicine | 5.4 | 4.9 | 0.22 | 1.05 | 0.95, 1.16 |
Avoid prescription medicine | 6.2 | 5.8 | 0.33 | 1.02 | 0.93, 1.13 |
Avoid long recovery time | 7.5 | 8.1 | 0.03 | 0.94 | 0.85, 1.05 |
Avoid costs of surgery | 3.7 | 4.2 | 0.24 | 0.98 | 0.91, 1.06 |