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Table 1 Demography factors and co-morbidities

From: Risk factors associated with the detection of pulmonary emphysema in older asymptomatic respiratory subjects

VariableEmphysema
n = 29
Control
n = 87
p
Gender, (male: female)22:723:64< 0.0001
Chronological age, years (SD)72 ± 967 ± 60.004
Body mass index (SD)24 ± 327 ± 40.0007
Cigarette smoking, former (%)23 (79)36 (41)< 0.0001
Occupational exposure, (%)15 (52)35 (40)0.279
Family history with lung disease, (%) a5 (17)4 (5)0.02
  1. aReported lung disease = Chronic obstructive pulmonary disease, chronic bronchitis, fibrosis, emphysema. SD = standard deviation