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Table 1 Demographic and clinical characteristics of participants according to disease severity or health status measures.

From: Discriminative and predictive properties of disease-specific and generic health status indexes in elderly COPD patients

  SGRQ tertile 1 SGRQ tertile 2 SGRQ tertile 3
  (N = 149) (N = 147) (N = 153)
Mean age (SD) 73.7 (5.9) 73.1 (4.9) 72.9 (5.4)
Males (%) 75.2 76.9 79.7
Mean FEV1 % (SD) 88.7 (19.7) 75.0 (21.1) 52.0 (20.3)
Mean SGRQ score (SD) 0.1 (0.4) 18.3 (9.4) 54.4 (14.0)
Mean WT % (SD) 73.5 (25.1) 76.8 (23.3) 60.2 (26.0)
Mean MMSE score (SD) 27.7 (2.5) 27.5 (2.6) 25.9 (4.2)
Mean GDS score (SD) 3.0 (3.2) 2.8 (2.7) 4.9 (3.3)
  MDA score 0 MDA score 1 MDA score 2
  (N = 224) (N = 155) (N = 70)
Mean age (SD) 73.0 (5.2) 73.4 (5.3) 73.6 (6.4)
Males (%) 82.6 74.2 67.1
Mean FEV1 % (SD) 77.4 (25.0) 69.2 (25.2) 59.3 (22.1)
Mean SGRQ score (SD) 16.1 (19.0) 29.8 (24.0) 40.2 (31.1)
Mean WD % (SD) 83.4 (18.8) 64.3 (24.1) 40.1 (17.8)
Mean MMSE score (SD) 28.2 (1.7) 27.0 (2.9) 23.7 (5.2)
Mean GDS score (SD) 1.6 (1.4) 4.9 (3.1) 7.7 (2.7)