Table 9 Exhaled breath biomarker summary and statistical comparisons
Exclusive e-Cigarette use groups | Dual use groups | Nicotine cessation N = 13 | |||||
|---|---|---|---|---|---|---|---|
Biomarker | Tobacco rechargeable N = 15 | Cherry rechargeable N = 13 | Cherry disposable N = 13 | Tobacco rechargeable N = 14 | Cherry rechargeable N = 15 | Cherry disposable N = 13 | |
CO (ppm) | |||||||
Day −1 | 27.2 ± 10.5 | 27.3 ± 6.9 | 26.9 ± 6.4 | 25.1 ± 7.3 | 25.4 ± 7.7 | 24.7 ± 5.5 | 29.3 ± 10.4 |
Day 5 | 2.9 ± 0.8 | 2.9 ± 0.8 | 2.7 ± 0.9 | 17.3 ± 5.7 | 16.1 ± 3.3 | 18.2 ± 5.7 | 2.8 ± 0.7 |
p-value Day −1 vs Day 5 | <0.0001 | <0.0001 | <0.0001 | 0.0021 | <0.0001 | 0.0002 | <0.0001 |
p-value Day 5 vs Cessation | 0.7990 | 0.8033 | 0.9109 | <0.0001 | <0.0001 | <0.0001 | NA |
NO (ppb) | |||||||
Day −1 | 14.8 ± 12.8 | 11.5 ± 4.8 | 10.0 ± 4.0 | 14.9 ± 11.1 | 10.6 ± 4.6 | 14.3 ± 13.5 | 11.3 ± 4.0 |
Day 5 | 23.3 ± 21.6 | 15.5 ± 9.0 | 14.3 ± 6.5 | 12.9 ± 6.3 | 10.7 ± 4.4 | 11.4 ± 6.0 | 16.8 ± 10.1 |
p-value Day −1 vs Day 5 | 0.0075 | 0.1325 | 0.0053 | 0.3118 | 0.9415 | 0.3287 | 0.0321 |
p-value Day 5 vs Cessation | 0.2370 | 0.6031 | 0.5674 | 0.0313 | 0.0615 | 0.0119 | NA |