Table 3.

Multiple regression models of predictors of urine menthol, urine nicotine equivalents, urine total NNAL, and urine total PAH metabolites in menthol cigarette smokers

Dependent variableModelIndependent variablesEstimateSE P R2
Urine mentholNAAge−0.00050.0190.980.14
Sex (F = 1)0.3410.4040.40
Race (A = 1)−0.5730.4300.16
BMI0.1920.2200.39
CPD0.4120.2530.11
TLC−0.1440.1830.43
Menthol score0.1030.1320.44
Urine NIC1Age0.0120.0080.170.46
EquivalentsSex0.1810.1800.32
(mmol/g creat)Race0.0120.1810.95
BMI−0.03080.0980.003
CPD0.0800.1140.486
TLC−0.1080.0810.192
MEN0.3170.062<0.001
Urine NNAL1Age0.0270.0090.0030.33
(pmol/mg creat)Sex0.0550.1910.77
Race0.0680.1920.73
BMI−0.1440.1040.17
CPD−0.0960.1210.43
TLC−0.1620.0860.07
MEN0.2230.0660.001
2Age0.0130.0050.010.58
Sex0.1540.1400.14
Race−0.1700.1080.12
BMI0.0960.0680.16
TLC0.0070.0560.90
NEq0.0840.081<0.001
MEN−0.0350.0330.30
Urine PAH1Age0.0250.0070.0040.47
(pmol/mg creat)Sex0.2410.1450.10
Race−0.0500.1460.74
BMI−0.1070.0800.18
CPD−0.0030.0920.97
TLC−0.0030.0660.21
MEN0.2280.050<0.001
2Age0.0180.004<0.0010.73
Sex0.1690.0970.089
Race−0.0660.1040.525
BMI0.0640.0620.308
TLC0.0160.0470.736
NEq0.5580.081<0.001
MEN0,0450.0440.314

NOTE: Models are described in the Data Analysis methods section.

Abbreviations: TLC, time from last cigarette to urine collection; NEq, urine nicotine equivalents; PAH, urine polycyclic aromatic hydrocarbon metabolites; MEN, urine menthol; NA, not applicable.