Table 2.
Biomarker Results by Follow-up NRT Use and Follow-up Smoking Status
| Smokers (relapsers) | Ex-smokers (quitters) | |||
|---|---|---|---|---|
| NRT use (N = 18) | No NRT use (N = 73) | NRT use (N = 14) | No NRT use (N = 153) | |
| Baseline assessment | ||||
| Geometric mean (IQR/n) cotinine in ng/mL | 193.7 (323.1/17) | 241.1 (238.8/68) | 340.1 (163.9/13) | 197.6 (174.6/146) |
| Geometric mean (IQR/n) alpha-amylase in U/mL | 20.1 (59.1/12) | 21.8 (27.2/45) | 29.1 (14.2/11) | 23.6 (30.5/109) |
| Follow-up assessment | ||||
| Geometric mean (IQR/n) cotinine in ng/ml | 210.8 (240.0/16)a | 244.7 (198.7/69)a | 169.9 (449.6/10)a | 1.2 (21.6/149)b |
| Geometric mean (IQR/n) alpha-amylase in U/mL | 25.8 (69.6/13) | 26.7 (32.2/43) | 22.4 (49.7/10) | 27.6 (37.7/111) |
IQR = interquartile range; NRT = nicotine replacement therapy.
a,bDifferent letters indicate significant differences between groups(p < .05).