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Table 2 Association between low comorbidity medication adherence and the number of unhealthy days for patients with metastatic breast, lung or colorectal cancer

From: The relationship between comorbidity medication adherence and health related quality of life among patients with cancer

Parameter Incidence rate ratio 95% Confidence interval P value
Breast cancer (compared to lung cancer) 0.813 0.676 0.978 0.028
Colorectal cancer (compared to lung cancer) 0.793 0.669 0.941 0.008
Age 0.898 0.782 1.033 0.132
Female 0.898 0.756 1.067 0.223
Low comorbidity medication adherence 1.234 1.059 1.439 0.007
Comorbid depression 1.551 1.315 1.830 < 0.001
High comorbidity index 0.963 0.819 1.132 0.647
Dual eligibility for Medicare and Medicaid 1.123 0.908 1.390 0.284
  1. A negative binomial regression model was used to assess the association between low adherence to comorbidity medications and the number of unhealthy days among patients with metastatic breast, colorectal cancer and lung cancer while controlling for other potentially confounding variables