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Table 3 Cox-regression analysis of change in average points in total symptoms in two subsequent weeks (maximum score in total symptoms = 14) as risk for a moderate or severe exacerbation

From: Prediction and course of symptoms and lung function around an exacerbation in chronic obstructive pulmonary disease

Change in points

Relative Risk (RR)

p- value

95% Confidence Interval for RR

<1 point

1#

-

 

1-2 points

4.8

<0.001

3.1 - 7.5

2-3 points

8.2

<0.001

4.3 – 15.8

>3 points

18.7

<0.001

10.5 – 33.4

  1. # reference category.
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Respiratory Research

ISSN: 1465-993X

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