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Breast cancer (BC) and depression are globally prevalent problems. Numerous reviews have indicated the high prevalence of depression among BC survivors. However, the long-term impact of depression on survival among BC survivors has not been well explored. For this investigation, we aimed to explore the relationship between BC, depression, and mortality from a national random sample of adult American women. Data from the U.S. National Health and Nutrition Examination Survey (years 2005–2010) were linked with mortality data from the National Death Index up to December 31st, 2019. A total of 4719 adult women (ages 45 years and older) were included in the study sample with 5.1% having breast cancer and more than a tenth (12.7%) having depression. The adjusted hazard ratio (HR) for all-cause mortality risk among those with BC was 1.50 (95% CI = 1.05–2.13) compared to those without BC. In the adjusted analysis, the risk of all-cause mortality was highest among women with both depression and BC (HR = 3.04; 95% CI = 1.15–8.05) compared to those without BC or depression. The relationship between BC and mortality was moderated by cardiovascular diseases, anemia, smoking, age, PIR, and marital status. Our analysis provides vital information on factors that could be helpful for interventions to reduce mortality risk among those with BC and depression. In addition, given the higher risk of mortality with co-occurring BC and depression, collaborative healthcare practices should help with widespread screening for and treatment of depression among BC survivors.
Breast cancer (BC) and depression are globally prevalent problems. Numerous reviews have indicated the high prevalence of depression among BC survivors. However, the long-term impact of depression on survival among BC survivors has not been well explored. For this investigation, we aimed to explore the relationship between BC, depression, and mortality from a national random sample of adult American women. Data from the U.S. National Health and Nutrition Examination Survey (years 2005–2010) were linked with mortality data from the National Death Index up to December 31st, 2019. A total of 4719 adult women (ages 45 years and older) were included in the study sample with 5.1% having breast cancer and more than a tenth (12.7%) having depression. The adjusted hazard ratio (HR) for all-cause mortality risk among those with BC was 1.50 (95% CI = 1.05–2.13) compared to those without BC. In the adjusted analysis, the risk of all-cause mortality was highest among women with both depression and BC (HR = 3.04; 95% CI = 1.15–8.05) compared to those without BC or depression. The relationship between BC and mortality was moderated by cardiovascular diseases, anemia, smoking, age, PIR, and marital status. Our analysis provides vital information on factors that could be helpful for interventions to reduce mortality risk among those with BC and depression. In addition, given the higher risk of mortality with co-occurring BC and depression, collaborative healthcare practices should help with widespread screening for and treatment of depression among BC survivors.
Background/Objeectives: Chronic Obstructive Pulmonary Disease (COPD) is a leading cause of mortality in the United States (U.S.), with rates varying by disease severity, comorbidities, and sociodemographic factors. Cognitive impairment has been independently associated with increased mortality, but has not been well studied in relation to COPD despite being a frequently overlooked comorbidity in COPD patients. The purpose of this nationwide study was to assess the relationship between low cognitive performance and the risk of mortality among older adults with COPD while adjusting for major sociodemographic and health-related characteristics. Methods: This study utilized the 1999–2002 National Health and Nutrition Examination Survey (NHANES) and the respiratory mortality data of noninstitutionalized US adults aged over 65 years. Survival curves showing the combined effect of cognitive decline and COPD using the Kaplan–Meier product-limit method to estimate the percent survival of the subject at each point in time were used. Results: The final sample included 2013 older adults, with 39.1% showing low cognitive performance and 12.7% having COPD. Those with low cognitive performance were older, less educated, had lower income, were more likely to be racial/ethnic minorities, and had a history of cardiovascular diseases (CVD); they were also more likely to have COPD or chronic kidney disease (CKD). The adjusted hazard ratio for respiratory-related mortality risk was highest for individuals with both COPD and low cognitive performance (hazards ratio = 8.53), people with COPD alone also had a higher respiratory-related mortality risk (hazards ratio = 4.92), but low cognitive performance alone did not significantly increase respiratory-related mortality risk. Conclusions: These findings provide clearer insights into how cognitive impairment affects mortality risk in older adults with COPD and we discuss potential strategies to address this dual chronic health challenge effectively.
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