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Table 2 Patient characteristics

From: The optimization of the diagnostic work-up in patients with suspected obstructive lung disease

  Control group Experimental group
Number of patients 86 93
Avg. age (years) 55.4 56.8
Sex (% male) 45 46
Height 168.4 170.8
FEV1% pred. 77.8 78.0
FVC % pred. 91.3 91.0
Non-smoker 41% 38%
Ex-smoker 20% 23%
Current smoker 33% 29%
Unknown smoker 6% 10%