The association between continuity of care and all-cause mortality in patients with newly diagnosed obstructive pulmonary disease: A population-based retrospective cohort study, 2005-2012

Kyoung Hee Cho, Young Sam Kim, Chung Mo Nam, Tae Hyun Kim, Sun Jung Kim, Kyu Tae Han, Eun Cheol Park

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background: The disease burden is increasing for chronic obstructive pulmonary disease (COPD) due to increasing of the growth rate of prevalence and mortality. But the empirical researches are a little for COPD that studied the association between continuity of care and death and about predictors effect on mortality. Objective: To investigate the association between continuity of care (COC) and chronic obstructive pulmonary disease (COPD) mortality and to identify other mortality-related factors in COPD patients. Methods: We conducted a longitudinal, population-based retrospective cohort study in adult patients with COPD from 2002 to 2012 using a nationwide health insurance claims database. The study sample included individuals aged 40 years and over who developed COPD in 2005 and survived until 2006. We performed a Cox proportional hazard regression analysis with COC analyzed as a time-dependent covariate. Results: Of the 3,090 participants, 60.8% died before the end of study (N = 1,879). The median years of survival for individuals with high COC (COC index≥75) was 3.92, and that for patients with low COC (COC index<0.75) was 2.58 in a Kaplan Meier analysis. In a multivariate, timedependent analysis, low COC was associated with a 22% increased risk of all-cause mortality (HR, 1.22; 95% CI, 1.09-1.36). Not receiving oxygen therapy at home was associated with a 23% increased risk of all-cause mortality (HR, 1.23; 95% CI, 1.01-1.49). Moreover, the risk of all-cause mortality for individuals who admitted one time increased 38% (HR, 1.38; 95% CI, 1.21-1.59), two times was 63% (HR, 1.63; 95% CI, 1.34-1.99) and 3+ times was 96% (HR, 1.96; 95% CI, 1.63-2.36) relative to the reference group (no admission). Conclusions: High COC was associated with a decreased risk of all-cause mortality. In addition, home oxygen therapy and number of hospital admissions may predict mortality in patients with COPD.

Original languageEnglish
Article numbere0141465
JournalPloS one
Volume10
Issue number11
DOIs
Publication statusPublished - 2015 Nov 3

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Obstructive Lung Diseases
Pulmonary diseases
Continuity of Patient Care
cohort studies
respiratory tract diseases
Cohort Studies
Retrospective Studies
Chronic Obstructive Pulmonary Disease
Mortality
Population
Health insurance
Oxygen
health insurance
oxygen
therapeutics
Regression analysis
burden of disease
Empirical Research
risk reduction
Kaplan-Meier Estimate

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

@article{1bf255515f7c4892906566b2fe883c95,
title = "The association between continuity of care and all-cause mortality in patients with newly diagnosed obstructive pulmonary disease: A population-based retrospective cohort study, 2005-2012",
abstract = "Background: The disease burden is increasing for chronic obstructive pulmonary disease (COPD) due to increasing of the growth rate of prevalence and mortality. But the empirical researches are a little for COPD that studied the association between continuity of care and death and about predictors effect on mortality. Objective: To investigate the association between continuity of care (COC) and chronic obstructive pulmonary disease (COPD) mortality and to identify other mortality-related factors in COPD patients. Methods: We conducted a longitudinal, population-based retrospective cohort study in adult patients with COPD from 2002 to 2012 using a nationwide health insurance claims database. The study sample included individuals aged 40 years and over who developed COPD in 2005 and survived until 2006. We performed a Cox proportional hazard regression analysis with COC analyzed as a time-dependent covariate. Results: Of the 3,090 participants, 60.8{\%} died before the end of study (N = 1,879). The median years of survival for individuals with high COC (COC index≥75) was 3.92, and that for patients with low COC (COC index<0.75) was 2.58 in a Kaplan Meier analysis. In a multivariate, timedependent analysis, low COC was associated with a 22{\%} increased risk of all-cause mortality (HR, 1.22; 95{\%} CI, 1.09-1.36). Not receiving oxygen therapy at home was associated with a 23{\%} increased risk of all-cause mortality (HR, 1.23; 95{\%} CI, 1.01-1.49). Moreover, the risk of all-cause mortality for individuals who admitted one time increased 38{\%} (HR, 1.38; 95{\%} CI, 1.21-1.59), two times was 63{\%} (HR, 1.63; 95{\%} CI, 1.34-1.99) and 3+ times was 96{\%} (HR, 1.96; 95{\%} CI, 1.63-2.36) relative to the reference group (no admission). Conclusions: High COC was associated with a decreased risk of all-cause mortality. In addition, home oxygen therapy and number of hospital admissions may predict mortality in patients with COPD.",
author = "Cho, {Kyoung Hee} and Kim, {Young Sam} and Nam, {Chung Mo} and Kim, {Tae Hyun} and Kim, {Sun Jung} and Han, {Kyu Tae} and Park, {Eun Cheol}",
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The association between continuity of care and all-cause mortality in patients with newly diagnosed obstructive pulmonary disease : A population-based retrospective cohort study, 2005-2012. / Cho, Kyoung Hee; Kim, Young Sam; Nam, Chung Mo; Kim, Tae Hyun; Kim, Sun Jung; Han, Kyu Tae; Park, Eun Cheol.

In: PloS one, Vol. 10, No. 11, e0141465, 03.11.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The association between continuity of care and all-cause mortality in patients with newly diagnosed obstructive pulmonary disease

T2 - A population-based retrospective cohort study, 2005-2012

AU - Cho, Kyoung Hee

AU - Kim, Young Sam

AU - Nam, Chung Mo

AU - Kim, Tae Hyun

AU - Kim, Sun Jung

AU - Han, Kyu Tae

AU - Park, Eun Cheol

PY - 2015/11/3

Y1 - 2015/11/3

N2 - Background: The disease burden is increasing for chronic obstructive pulmonary disease (COPD) due to increasing of the growth rate of prevalence and mortality. But the empirical researches are a little for COPD that studied the association between continuity of care and death and about predictors effect on mortality. Objective: To investigate the association between continuity of care (COC) and chronic obstructive pulmonary disease (COPD) mortality and to identify other mortality-related factors in COPD patients. Methods: We conducted a longitudinal, population-based retrospective cohort study in adult patients with COPD from 2002 to 2012 using a nationwide health insurance claims database. The study sample included individuals aged 40 years and over who developed COPD in 2005 and survived until 2006. We performed a Cox proportional hazard regression analysis with COC analyzed as a time-dependent covariate. Results: Of the 3,090 participants, 60.8% died before the end of study (N = 1,879). The median years of survival for individuals with high COC (COC index≥75) was 3.92, and that for patients with low COC (COC index<0.75) was 2.58 in a Kaplan Meier analysis. In a multivariate, timedependent analysis, low COC was associated with a 22% increased risk of all-cause mortality (HR, 1.22; 95% CI, 1.09-1.36). Not receiving oxygen therapy at home was associated with a 23% increased risk of all-cause mortality (HR, 1.23; 95% CI, 1.01-1.49). Moreover, the risk of all-cause mortality for individuals who admitted one time increased 38% (HR, 1.38; 95% CI, 1.21-1.59), two times was 63% (HR, 1.63; 95% CI, 1.34-1.99) and 3+ times was 96% (HR, 1.96; 95% CI, 1.63-2.36) relative to the reference group (no admission). Conclusions: High COC was associated with a decreased risk of all-cause mortality. In addition, home oxygen therapy and number of hospital admissions may predict mortality in patients with COPD.

AB - Background: The disease burden is increasing for chronic obstructive pulmonary disease (COPD) due to increasing of the growth rate of prevalence and mortality. But the empirical researches are a little for COPD that studied the association between continuity of care and death and about predictors effect on mortality. Objective: To investigate the association between continuity of care (COC) and chronic obstructive pulmonary disease (COPD) mortality and to identify other mortality-related factors in COPD patients. Methods: We conducted a longitudinal, population-based retrospective cohort study in adult patients with COPD from 2002 to 2012 using a nationwide health insurance claims database. The study sample included individuals aged 40 years and over who developed COPD in 2005 and survived until 2006. We performed a Cox proportional hazard regression analysis with COC analyzed as a time-dependent covariate. Results: Of the 3,090 participants, 60.8% died before the end of study (N = 1,879). The median years of survival for individuals with high COC (COC index≥75) was 3.92, and that for patients with low COC (COC index<0.75) was 2.58 in a Kaplan Meier analysis. In a multivariate, timedependent analysis, low COC was associated with a 22% increased risk of all-cause mortality (HR, 1.22; 95% CI, 1.09-1.36). Not receiving oxygen therapy at home was associated with a 23% increased risk of all-cause mortality (HR, 1.23; 95% CI, 1.01-1.49). Moreover, the risk of all-cause mortality for individuals who admitted one time increased 38% (HR, 1.38; 95% CI, 1.21-1.59), two times was 63% (HR, 1.63; 95% CI, 1.34-1.99) and 3+ times was 96% (HR, 1.96; 95% CI, 1.63-2.36) relative to the reference group (no admission). Conclusions: High COC was associated with a decreased risk of all-cause mortality. In addition, home oxygen therapy and number of hospital admissions may predict mortality in patients with COPD.

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