Total Nicotine Concentration Consumed (weight in mg/10 minute session).

Data are presented as means ± standard deviations. Ranges depict lowest to highest nicotine concentrations consumed by participants across both brands and are shown in percentage (%).a = Nicotine concentration on label of EC.b = Nicotine concentration determined by HPLC. Blu Day 1 vs V2 Day1, Blu Day2 vs V2 Day 2, and Combined Blu vs Combined V2 were analyzed using paired t-tests. Comparisons were done using groups with labeled nicotine concentrations. The pair that was significantly different is shown byc and is in bold.* = pTotal Nicotine Concentration Consumed (weight in mg/10 minute session).