Table 2 Change in health status and symptom scores of 4 the groups of COPD patients at exacerbations compared to stable visits

-1.36 (-2.61 to -0.12)*

-1.33 (-2.35 to -0.31)*

-1.11 (-1.76 to -0.45)*

-1.00 (-2.61 to -0.12)*

0.78

-1.49 (-2.92 to -0.05)*

-1.05 (-2.32 to 0.21)*

-1.04 (-1.41 to -0.67)*

-0.57 (-0.98 to -0.15)*

0.34

-1.22 (-1.52 to -0.91)*

-1.07 (-2.00 to -0.14)*

-0.62 -1.27 to 0.02)*

-0.89 (-1.31 to -0.46)*

0.67

-0.99 (-2.33 to 0.36)*

-0.97 (-2.28 to 0.34)*

-1.10 (-1.99 to -0.21)*

-0.75 (-1.09 to -0.41)*

0.59

-1.26 (-2.21 to -0.32)*

-1.12 (-1.99 to -0.22)*

-0.97 (-1.49 to -0.44)*

-0.79 (-1.04 to -0.55)*

0.54

22 (3 to 42)*

35 (21 to 48)*

7 (3 to 42)*

27 (18 to 36)*

0.06

34 (3 to 65)*

35 (20 to 51)*

17 (-2 to 35)

25 (17 to 33)*

0.31

8 (-32 to 49)

24 (-2 to 50)

9 (-2 to 21)

21 (12 to 29)*

0.45

28 (-13 to 68)

18 (-5 to 42)

31(17 to 45)*

15 (5 to 24)*

0.36