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Table 7 Regression analyses of nicotine equivalents excretion and Day −1 and Day 5 product use

From: Reductions in biomarkers of exposure, impacts on smoking urge and assessment of product use and tolerability in adult smokers following partial or complete substitution of cigarettes with electronic cigarettes

Relationship Assessed Slope R-square P-Value
Day −1 nicotine equivalents amount excreted against cigarettes smoked (all Groups) 0.7485 0.2137 <.0001
Day 5 nicotine equivalents amount excreted against cigarettes smoked (dual use Groups) 0.3598 0.0289 0.2814
Day 5 nicotine equivalents amount excreted against estimated nicotine from e-cigarettes (dual use Groups) 0.3970 0.4502 <.0001
Day 5 nicotine equivalents amount excreted against estimated nicotine from e-cigarettes (exclusive use Groups) 0.4794 0.8538 <.0001