Re: The association between chronic obstructive pulmonary disease and dementia: a population-based retrospective cohort study

2015 ◽  
Vol 22 (6) ◽  
pp. e70-e70
Author(s):  
K.-M. Liao
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Cohort Study ◽  
Pulmonary Disease ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Population Based ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

scholarly journals Chronic Obstructive Pulmonary Disease Increases the Risk of Mortality among Patients with Colorectal Cancer: A Nationwide Population-Based Retrospective Cohort Study

2021 ◽  
Vol 18 (16) ◽  
pp. 8742
Author(s):  
Wei-Jen Cheng ◽  
Chih-Chao Chiang ◽  
Meng-Ting Peng ◽  
Yu-Tung Huang ◽  
Jhen-Ling Huang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Chronic Obstructive Pulmonary Disease ◽  
Cohort Study ◽  
Pulmonary Disease ◽  
Mortality Risk ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Population Based ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

Background: Colorectal cancer (CRC) is the third leading cause of cancer-related deaths in Taiwan. Chronic obstructive pulmonary disease (COPD) is associated with CRC mortality in several population-based studies. However, this effect of COPD on CRC shows no difference in some studies and remains unclear in Taiwan’s population. Methods: We conducted a retrospective cohort study using Taiwan’s nationwide database. Patients newly diagnosed with CRC were identified from 2007 to 2012 via the Taiwan Cancer Registry dataset and linked to the National Health Insurance research database to obtain their medical records. Propensity score matching (PSM) was applied at a ratio of 1:2 in COPD and non-COPD patients with CRC. The 5-year overall survival (OS) was analyzed using the Cox regression method. Results: This study included 43,249 patients with CRC, reduced to 13,707 patients after PSM. OS was lower in the COPD group than in the non-COPD group. The adjusted hazard ratio (aHR) for COPD was 1.26 (95% confidence interval (CI), 1.19–1.33). Moreover, patients with CRC plus preexisting COPD showed a higher mortality risk in all stage CRC subgroup analysis. Conclusions: In this 5-year retrospective cohort study, patients with CRC and preexisting COPD had a higher mortality risk than those without preexisting COPD, suggesting these patients need more attention during treatment and follow-up.

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