Table 2

Clinical, anthropometrics, pulmonary function test and 6‐min walk distance (6MWD) in patients with chronic obstructive pulmonary disease

Group 1Group 2Group 3
Subjects n1144242
Age yrs66±969±8<0.0471±7<0.003
BMI kg·m−225.95±5.9123.65±4.8023.49±5.98<0.02
FEV1 L1.13±0.400.94±0.32<0.0060.88±0.36<0.0007
First 6MWD m275±98221±103<0.002155±80<0.0
Follow-up period yrs2.0±1.31.8±1.31.1±1.0
  • Data are presented as mean±sd unless otherwise stated

  • Group 1: alive, two evaluations

  • Group 2: deceased, two evaluations

  • Group 3: deceased, one evaluation

  • M: male

  • F: female

  • BMI: body mass index

  • FEV1: forced expiratory volume in one second

  • #: compared with group 1

  • : time between first evaluation and death