Table 3.

Random Effects Model for Caregiver Depressive Symptomatology^a (n = 237)

	Coefficient	Significance	95% Confidence Interval
Caregiver age	−0.141	0.000	−0.210, −0.072
Caregiver sex	0.239	0.792	−1.536, 2.014
Caregiver comorbidity	0.695	0.037	0.041, 1.349
Patient comorbidity	−0.157	0.589	−0.727, 0.413
Intervention (1 = experimental, 2 = control)	−1.607	0.057	−3.263, 0.049
Mastery	−0.615	0.000	−0.809, −0.422
Symptom assistance	0.400	0.033	0.033, 0.768
Caregiver social functioning	−0.177	0.000	−0.215, −0.139
Stage of disease (1 = early, 2 = late)	2.315	0.021	0.343, 4.288
Cancer site
Lung versus breast	1.352	0.250	−0.953, 3.656
Other versus breast	−0.577	0.626	−2.900, 1.746
Patient depressive symptomatology	0.097	0.090	−0.015, 0.210
Patient symptom severity	−0.081	0.008	−0.141, −0.021
Patient physical functioning	−0.015	0.449	−0.055, 0.024
Patient social functioning	0.005	0.781	−0.032, 0.043
Chemotherapy status	2.171	0.129	−0.629, 4.970
Time	0.583	0.428	−0.858, 2.023

^aNumber of person-interview observations 339; observations per case: maximum 3, minimum 1, average 1.7; R²-within 0.4792, R²-between 0.4312, R²-overall 0.4506.