Table 5.
Hazard ratios (95 % CI) for race/ethnicity and comorbidities by source of comorbidity data in the CBCSC Comorbidity Validation Study, 1997–2010
| Study Questionnaire | KPMR | |||
|---|---|---|---|---|
|
|
|
|||
| HRa | 95 % CI | HR | 95 % CI | |
| n deaths + censored | 1,936 | 1,936 | ||
| Diabetes model (n = 1,936) | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.65 | 1.20, 2.25 | 1.44 | 1.07, 1.95 |
| Missing | 0.70 | 0.34, 1.45 | ||
| Akaike information criterionb | 3,938 | 3,940 | ||
| Hypertension model (n = 1,936) | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.22 | 0.96, 1.54 | 1.55 | 1.22, 1.96 |
| Missing | 0.93 | 0.37, 2.31 | ||
| Akaike information criterion | 3,945 | 3,933 | ||
| Myocardial infarction model (n = 1,609) | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.40 | 0.79, 2.49 | 1.73 | 0.82, 3.66 |
| Missing | 0.44 | 0.20, 0.96 | ||
| Akaike information criterion | 3,485 | 3,488 | ||
| Other heart diseases model (n = 1,768) | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.07 | 0.77, 1.49 | 1.51 | 1.17, 1.96 |
| Missing | 0.82 | 0.43, 1.55 | ||
| Akaike information criterion | 3,736 | 3,725 | ||
CBCSC California Breast Cancer Survivorship Consortium, CI confidence interval, HR hazard ratio, KPMR Kaiser Permanente medical record
a
Cox proportion hazards regression model for all-cause mortality using attained age as the time metric, stratification by study, and adjustment for age, ln(age), AJCC stage, differentiation, ER/PR, nodes, tumor size, prior tumor, chemotherapy, surgery, age at first birth, alcohol, education, marital status, neighborhood socioeconomic status, race/ethnicity, smoking, nativity, and BMI
b
Lower values of Akaike information criterion indicate better model fit