Table 3.
Analysis of Response Using GEE Model
| Covariate | Level | Reference Level | Adjusted OR | 95% CI | χ2P |
|---|---|---|---|---|---|
| Intervention arm | ATSM | NASM | — | — | |
| Onset time | Second or later contact | First contact | 1.46 | 1.00 to 2.11 | .05 |
| Metastatic | Yes | No | — | — | |
| Chemotherapy protocol group | Single | Combination | 1.79 | 1.18 to 2.73 | < .01 |
| Comorbid conditions | 0-1 | 2+ | 2.03 | 1.31 to 3.15 | < .01 |
| Interaction of intervention arm by metastatic* | Metastatic, ATSM | Metastatic, NASM | 4.40 | 2.25 to 8.60 | < .01 |
| Not metastatic, ATSM | Not metastatic, NASM | 0.87 | 0.51 to 1.51 | .63 |
Abbreviations: GEE, generalized estimating equation; OR, odds ratio; ATSM, Automated Telephone Symptom Management; NASM, Nurse-Administered Symptom Management.
*
P < .01.