Table 5.

Nicotine and exhaled carbon monoxide measurements by cigarette type and condition

Plasma nicotine (ng/mL)Exhaled CO (ppm)
Cigarette typeConditionPrePostPBoostPrePostPBoost
RYO (n = 34)NR12.3 (8.1)26.6 (13.3)a14.3 (10.2)29 (17)34 (16)NS4 (3)
ABS2.4 (2.0)21.8 (16.6)a19.4 (16.9)9 (3)14 (4)NS6 (3)
INT16.2 (8.1)25.7 (12.2)a9.5 (8.2)32 (12)36 (12)NS4 (3)
ABS < NRa; INTaABS > INTaABS < NRa; INTaABS < NRa; INTaABS > INTb
PMM (n = 23)NR13.3 (7.1)33.1 (19.8)a19.8 (18.3)27 (13)32 (11)NS5 (3)
ABS2.8 (1.9)20.4 (17.4)a17.6 (17.8)9 (2)15 (3)NS6 (3)
INT22.1 (11.9)31.0 (17.7)NS8.9 (17.9)36 (13)40 (13)NS4 (3)
ABS < NRa; INTaABS < NRa; INTaABS < NRa; INTaABS > INTb
INT > NRaINT > NRaINT > NRa
FM (n = 20)NR10.3 (7.5)29.1 (13.1)a18.8 (12.2)22 (14)39 (26)a9 (5)
ABS1.6 (1.0)23.5 (11.9)a21.9 (11.6)8 (3)16 (4)NS9 (3)
INT18.2 (9.2)31.0 (12.2)a12.2 (9.9)33 (13)44 (20)NS7 (5)
ABS < NRa; INTaABS > INTbABS < NRa; INTaABS < NRa; INTa
INT > NRaINT > NRa

NOTE: Arithmetic means with SDs are presented.

Abbreviations: pre, biomarker level before smoking; post, biomarker level after smoking; boost, difference between biomarker levels after and before smoking; P, post hoc ANOVA test.