Research Article
Cigarette Design Features in Low-, Middle-, and High-Income Countries
Table 2
ANOVA, basic differences in physical parameters by income group.
| | Income group | Mean | Standard error | Minimum | Maximum | ANOVA | |
| Cigarette length | Low | 79.45 | 1.24 | 66.57 | 84.16 | | 0.001 | | Middle | 82.77 | 0.34 | 78.61 | 93.87 | | | | High | 83.80 | 1.04 | 71.79 | 99.08 | | | Rod diameter | Low | 7.59 | 0.02 | 7.34 | 7.91 | | 0.924 | | Middle | 7.56 | 0.02 | 6.84 | 8.02 | | | | High | 7.54 | 0.17 | 2.88 | 8.02 | | | Filter diameter | Low | 7.58 | 0.02 | 7.20 | 7.77 | | 0.723 | | Middle | 7.60 | 0.02 | 6.81 | 7.85 | | | | High | 7.50 | 0.18 | 2.55 | 7.82 | | | Tobacco length | Low | 61.51 | 0.56 | 56.96 | 68.58 | | 0.432 | | Middle | 60.46 | 0.49 | 54.15 | 70.27 | | | | High | 60.40 | 0.88 | 50.21 | 72.46 | | | Length of tipping paper | Low | 25.70 | 0.76 | 18.39 | 32.65 | | 0.010 | | Middle | 27.98 | 0.48 | 15.32 | 36.40 | | | | High | 28.93 | 0.87 | 18.94 | 38.30 | | | Filter length | Low | 19.92 | 0.90 | 8.94 | 27.23 | | 0.083 | | Middle | 22.89 | 0.88 | 11.04 | 63.26 | | | | High | 21.44 | 0.71 | 14.94 | 26.95 | | | Filter weight | Low | 0.1029 | 0.0055 | 0.0458 | 0.1547 | | 0.017 | | Middle | 0.1178 | 0.0028 | 0.0600 | 0.1556 | | | | High | 0.1172 | 0.0037 | 0.0895 | 0.1585 | | | Number of vent rows | Low | 0.33 | 0.19 | 0.00 | 4.00 | | 0.003 | | Middle | 1.00 | 0.15 | 0.00 | 4.00 | | | | High | 1.46 | 0.30 | 0.00 | 6.00 | | | Per-cigarette tobacco weight | Low | 0.6928 | 0.0075 | 0.62 | 0.77 | | 0.040 | | Middle | 0.6581 | 0.0116 | 0.52 | 1.16 | | | | High | 0.6486 | 0.0099 | 0.55 | 0.75 | | | Ventilation (%) | Low | 7.49 | 2.3595 | 0.00 | 42.22 | | <0.001 | | Middle | 15.34 | 1.6746 | 0.00 | 39.54 | | | | High | 26.21 | 3.3641 | 0.76 | 68.20 | | | Paper porosity | Low | 35.01 | 3.16 | 15.74 | 80.05 | | 0.008 | | Middle | 44.09 | 2.40 | 15.88 | 81.57 | | | | High | 48.47 | 2.21 | 31.42 | 72.41 | | |
|
|