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Table 5 Health-related quality of life scores, adjusted mean values (± SD) using FVC% predicted normal value

From: Health-related quality of life is related to COPD disease severity

Scale FVC % predicted
  > 95% n = 35 95-81% n = 33 80-66% n = 40 < 66% n = 34 p-value (all stages)
SF-36 PCS 44(11) 45(11) 38(12) 35(10) 0.0008
SF-36 MCS 53(9) 52(10) 53(11) 49(14) 0.28
SGRQ Total 26(17) 29(17) 37(22) 43(20) 0.0002
EQ-5D VAS 71(19) 69(24) 63(25) 49(25) 0.0002
EQ-5D index 0.79(0.18) 0.80(0.19) 0.71(0.27) 0.62(0.26) 0.0017