Mean (±SE) outcome measures by preferred brand groups
| Preferred Marlboro brand | ||
| Red (n=191) | Gold (n=49) | |
| Subjective ratings | ||
| Strength† | 62.9 (1.4) | 54.5 (2.3) |
| Harshness* | 47.1 (1.3) | 39.8 (2.6) |
| Heat | 34.7 (1.5) | 31.2 (2.9) |
| Draw | 32.7 (1.4) | 35.8 (3.0) |
| Taste (bad/good) | 61.9 (1.4) | 61.4 (2.3) |
| Satisfaction | 67.7 (1.5) | 68.0 (2.9) |
| Burn rate | 54.9 (1.5) | 60.7 (2.6) |
| Taste (mild/not mild)* | 47.7 (1.4) | 41.2 (2.5) |
| Too mild | 64.7 (1.5) | 64.0 (2.8) |
| Smoke harshness* | 62.4 (1.4) | 69.7 (2.5) |
| Aftertaste | 49.9 (1.7) | 50.8 (3.0) |
| Staleness | 70.9 (1.6) | 76.4 (2.5) |
| Smoke strength* | 57.6 (1.5) | 50.5 (2.4) |
| Smoke smell | 55.4 (1.6) | 55.4 (3.1) |
| Smoking behaviours | ||
| Daily cigarette consumption | 13.1 (0.5) | 15.1 (1.2) |
| Total puff volume (mL) | 844.7 (21.6) | 878.3 (49.1) |
| Mean puff volume (mL) | 63.2 (1.4) | 61.0 (3.2) |
| Puff no | 13.9 (0.3) | 15.0 (0.6) |
| Puff duration (s) | 2.2 (0.0) | 2.0 (0.1) |
| Interpuff interval (s)* | 21.9 (0.6) | 19.0 (1.0) |
| Peak velocity (mL/s) | 47.0 (1.0) | 48.4 (2.0) |
| Biomarkers of exposure | ||
| Nicotine (μg/mL) | 2.5 (0.1) | 2.5 (0.2) |
| Cotinine (μg/mL) | 4.0 (0.5) | 4.2 (0.5) |
| 3-hydroxycotinine (μg/mL) | 9.5 (0.6) | 11.6 (1.4) |
| Total nicotine equivalents (μg/mL) | 15.9 (0.8) | 18.0 (2.0) |
| Onset CO (ppm) | 18.3 (0.6) | 20.2 (1.6) |
| CO boost (ppm) | 4.8 (0.2) | 4.2 (0.3) |
*Indicates significant t-test comparison at p<0.05
†Indicates significant t-test comparison at p<0.01