Predicting tar yields | Predicting nicotine yields | |||||||
---|---|---|---|---|---|---|---|---|
Percent ventilation | −0.87 (0.73 to 1.01) | −0.92 (−1.06 to −0.78) | −0.79 (−0.95 to −0.63) | −0.65 (−0.79 to −0.51) | −0.82 (−0.96 to −0.68) | −0.91 (−1.07 to −0.75) | −0.74 (−0.89 to −0.59) | −0.61 (−0.75 to −0.47) |
Percent nicotine (mg nicotine/mg tobacco) | NA | 0.03 (−0.11 to 0.17) | −0.22 (−0.42 to −0.02) | −0.06 (−0.24 to 0.12) | NA | 0.09 (−0.07 to 0.25) | −0.23 (−0.43 to −0.03) | −0.09 (−0.29 to 0.11) |
Total nicotine (nicotine/cigarette (mg)) | 0.15 (0.01 to 0.29) | NA | 0.33 (0.11 to 0.55) | 0.20 (0.02 to 0.38) | 0.24 (0.10 to 0.38) | NA | 0.43 (0.21 to 0.65) | 0.31 (0.11 to 0.51) |
Filter weight (mg) | NA | NA | NA | −0.31 (−0.45 to 0.17) | NA | NA | NA | −0.28 (−0.44 to −0.12) |
Intercept | 9.64 | 14.39 | 11.4 | 17.71 | 0.48 | 0.87 | 0.61 | 0.99 |
RMS error | 1.91 | 2.05 | 1.81 | 1.44 | 0.13 | 0.15 | 0.12 | 0.10 |
R 2 (all p<0.0001) | 0.87 | 0.85 | 0.89 | 0.93 | 0.87 | 0.82 | 0.89 | 0.92 |
NA = not applicable.