Table 1.
Exhaled CO levels in smoking healthy subjects and patients with significant issues.
| 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 |
COPD chronic obstructive pulmonary disease; LRTI lower respiratory tract infection; URTI upper respiratory tract infections; CF cystic fibrosis; SBP spontaneous bacterial peritonitis;