Skip to main content

Table 1 Exhaled CO levels in smoking healthy subjects and patients with significant issues.

From: Effects of acute hypoventilation and hyperventilation on exhaled carbon monoxide measurement in healthy volunteers

Authors Diseases or smoking Exhaled CO level (ppm) N. Subjects
   Mean Range or S.D. or 95% C.I.  
Deveci et al (2004) [27] Smoking 17.13 ± 8.5 243
Carpagnano et al (2003)[28] Smoking 16.70 ± 5.5 31
Montuschi et al. (2001) [9] COPD 7.40 ± 1.9 15
Montuschi et al. (2001) [9] COPD + Smoking 20.0 ± 2.6 15
Biernacki et al (2001) [12] LRTI 5.20 ± 0.5 35
Yamaya et al (1998) [29] URTI 5.60 ± 0.4 20
Ohara Y et al (2006) [7] Asthma 5.10 ± 0.4 22
Kiyoshi et al (1997) [30] Asthma 5.60 ± 0.6 12
Paredi et al (1999) [31] CF 6.70 ± 0.6 29
Horvath et al. (2003) [32] Bronchiectasis 5.00 3.0 - 15.0 31
De Las Heras et al (2003) [33] SBP 7.00 ± 0.5 9
  1. COPD chronic obstructive pulmonary disease; LRTI lower respiratory tract infection; URTI upper respiratory tract infections; CF cystic fibrosis; SBP spontaneous bacterial peritonitis;