Table 3. Multivariate Logistic Regression Model.
| Bivariable Analysis OR (95% CI) | P-value | Multivariate Analysis AOR (95% CI) | P-value | |
|---|---|---|---|---|
| Age, years | ||||
| <55 (Reference) | 1 | 1 | ||
| 55-65 | 0.56 (0.31-1.00) | 0.05 | 0.99 (0.44-2.21) | 0.97 |
| >65 | 0.31 (0.16-0.59) | <0.001 | 0.79 (0.27-2.32) | 0.67 |
| Race/ethnicity | ||||
| White (Reference) | 1 | 1 | ||
| Non-white* | 0.61 (0.32-1.16) | 0.13 | 0.59 (0.27-1.27) | 0.18 |
| Employment | ||||
| Full-time (Reference) | 1 | 1 | ||
| Part-time | 0.63 (0.31-1.31) | 0.22 | 0.63 (0.28-1.41) | 0.26 |
| Not currently | 0.41 (0.24-0.67) | <0.001 | 0.62 (0.33-1.13) | 0.13 |
| Years since LMP | ||||
| >10 (Reference) | 1 | 1 | ||
| 5-10 | 1.59 (0.94-2.70) | 0.08 | 1.10 (0.55-2.21) | 0.79 |
| <5 | 4.68 (2.32-9.44) | <0.001 | 3.39 (1.21-9.44) | 0.02 |
| Chemotherapy | ||||
| None (Reference) | 1 | 1 | ||
| Chemotherapy, but no Taxane | 1.49 (0.86-2.57) | 0.15 | 1.04 (0.55-1.97) | 0.89 |
| Chemotherapy included Taxane | 1.94 (1.08-3.50) | 0.027 | 1.06 (0.52-2.16) | 0.88 |
| Comorbidity | ||||
| None (Reference) | 1 | 1 | ||
| One | 0.77 (0.44-1.37) | 0.38 | 0.96 (0.50-1.86) | 0.91 |
| Two or more | 0.55 (0.37-0.97) | 0.037 | 0.92 (0.47-1.81) | 0.8 |
| Weight gain since breast cancer | ||||
| No weight gain (Reference) | 1 | 1 | ||
| 10 lbs or less | 1.52 (0.87-2.65) | 0.14 | 1.12 (0.61-2.07) | 0.71 |
| greater than 10 lbs | 1.76 (1.01-3.08) | 0.047 | 1.25 (0.65-2.38) | 0.5 |
Abbreviations: O.R.-odds ratio, C.I.-confidence interval, A.O.R.-adjusted odds ratio