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Table 4 Multiple linear regression analysis of the summary score of the Severe Respiratory Insufficiency Questionnaire (SRI) in relation to patient care, family situation and autonomy level, adjusted for different variables (n = 127)

From: Living conditions and autonomy levels in COPD patients receiving non-invasive ventilation: impact on health related quality of life

   95% CI  
Regression coefficient Lower limit Upper limit P value
Ambulatory care (respiratory specialist) 1.7 − 5.4 8.8 0.638
Age (per additional 10 years) 0.1 − 0.3 0.5 0.607
Family situation (alone vs. with family) 1.2 − 5.4 7.8 0.715
Occupational status* − 14.8 − 25.0 − 4.6 0.005
Home environment (private home vs. nursing home) 4.8  − 8.8 18.4 0.490
Rehabilitation − 0.8 − 7.0 5.4 0.802
Respiratory specialist (yes vs. no) 2.2 − 4.9 9.3 0.547
Home environment (private home vs. nursing home) 4.4 − 8.7 17.5 0.508
Exacerbations (last 12 months) − 7.2 − 12.6 − 1.9 0.008
Family situation 0.2 − 5.8 6.1 0.959
Level of autonomy impairment# − 8.5 − 11.4 − 5.6 < 0.001
Home environment (private home vs. nursing home) 12.2 − 0.3 24.8 0.055
Level of autonomy impairment − 6.5 − 8.7 − 4.3 < 0.001
Home environment (private home vs. nursing home) 13.9 1.2 26.6 0.032
Family situation (alone vs. with family) 1.2 − 4.8 7.1 0.693
  1. Significant values are marked in bold
  2. CI: confidence interval; * employed or able to work, retired, unemployable; # no impairments, significant impairments (level 2), serious impairments (level 3), most serious impairments (level 4)
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BMC Pulmonary Medicine

ISSN: 1471-2466

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