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Table 4 Risk of sleep quality for future exacerbation during one- year follow-up using Cox regression

From: The impact of impaired sleep quality on symptom change and future exacerbation of chronic obstructive pulmonary disease

 

Moderate to severe exacerbation

Frequent exacerbation

Severe exacerbation

HR (95CI%)

P- value

HR (95CI%)

P- value

HR (95CI%)

P- value

PSQI>5*

1.692(1.213–2.357)

0.002

1.766(1.115–2.797)

0.015

1.124(1.018–1.301)

0.031

PSQI#

1.070(1.030–1.111)

<0.001

1.080(1.020–1.142)

0.008

1.010(0.983–1.026)

0.102

  1. Notes: Multivariate cox analysis of model 1(*) and model2 (#) were adjusted for age, sex, CAT score, mMRC score, CCQ score, GOLD group, exacerbation in the past year, inhalation drug, risk of OSAS, anxiety and depression.
  2. Abbreviations: CAT, COPD Assessment Test; CCQ, Clinical COPD Questionnaire; GOLD, Global Initiative for Chronic Obstructive Lung Disease; HR, hazard rate? mMRC, modified medical research council dyspnea scale; MCID, minimum clinically important difference; OSAS, obstructive sleep apnea syndrome ; PSQI, Pittsburgh sleep quality index.
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Respiratory Research

ISSN: 1465-993X

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