Table 3

Correlations between Clinical and HRQL Measures

FEV1

6MWT

Borg Dyspnea

SF-36 PCS

SF-36 MCS

EQ-5D index (UK)

EQ-5D index (US)

EQ-5D VAS

SGRQ Total

SGRQ Symptom

SGRQ Activity


FEV1

1

6MWT

0.28

1

Borg Dyspnea

-0.41§

-0.21

1

SF-36 PCS

0.19

0.40§

-0.58§

1

SF-36 MCS

0.14

0.16

-0.34§

0.15

1

EQ-5D Index(UK)

0.01

0.21

-0.48§

0.51§

0.54§

1

EQ-5D Index (US)

0.03

0.21

-0.48§

0.51§

0.56§

0.99§

1

EQ-5D VAS

0.16

0.31§

-0.48§

0.69§

0.49§

0.52§

0.53§

1

SGRQ Total

-0.43§

-0.30§

0.76§

-0.67§

-0.50§

-0.55§

-0.57§

-0.60§

1

SGRQ Symptom

-0.24

-0.03

0.51§

-0.42§

-0.35§

-0.36§

-0.38§

-0.36§

0.73§

1

SGRQ Activity

-0.45§

-0.46§

0.70§

-0.67§

-0.40§

-0.47§

-0.48§

-0.53§

0.88§

0.48§

1

SGRQ Impact

-0.36§

-0.21

0.72§

-0.59§

-0.50§

-0.56§

-0.58§

-0.60§

0.94§

0.63§

0.72§


p < 0.05, § p < 0.001

Pickard et al. Health and Quality of Life Outcomes 2011 9:26   doi:10.1186/1477-7525-9-26

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