Parameter | Spearman correlation (p Value) | ||
Duration of use | Cotinine | Total NNAL | |
Min/dip | 0.11 (0.12) | 0.20 (0.004) | 0.16 (0.02) |
Dips/day | 0.26 (<0.001) | 0.15 (0.03) | 0.19 (0.005) |
Min/day | 0.28 (<0.001) | 0.29 (<0.001) | 0.28 (<0.001) |
Tins/week | 0.04 (0.54) | 0.08 (0.23) | 0.13 (0.055) |
Dips/tin | 0.21 (0.003) | 0.27 (<0.001) | 0.23 (<0.001) |