Illicit cigarettes in Mexico by city
| Survey of smokers | Collection of littered packs | ||||
| % of smokers who use illicit cigarettes | Illicit share of the total consumption of cigarettes | Illicit share of the total consumption of cigarettes | |||
| Estimate | Estimate | 95% CI | Estimate | 95% CI | |
| Mexico City* | 2.2% | 2.4% | (0.6% to 4.0%) | 6.6% | (5.1% to 8.6%) |
| Durango | 11.6% | 16.5% | (8.7% to 25.9%) | 17.5% | (15.4% to 19.8%) |
| Guadalajara* | 5.3% | 5.6% | (2.7% to 11.5%) | 10.6% | (8.7% to 13.0%) |
| Hermosillo | 0.3% | 3.8% | (0.7% to 8.6%) | 0.3% | (0.1% to 0.8%) |
| Leon | 11.8% | 22.2% | (11.9% to 33.7%) | 27.5% | (24.8% to 30.4%) |
| Merida* | 5.2% | 1.5% | (0.6% to 3.2%) | 7.8% | (6.4% to 9.6%) |
| Monterrey* | 3.6% | 5.2% | (2.6% to 10.6%) | 1.4% | (0.7% to 2.7%) |
| Veracruz | 0.9% | 2.6% | (0.3% to 6.6%) | 1.0% | (0.5% to 2.1%) |
| Total | 5.0% | 7.6% | (6.5% to 8.7%) | 8.8% | (8.2% to 9.4%) |
For the survey of smokers, illicit market share is calculated based on self-reported intensity of smoking. The totals are weighted by the number of smokers in each city.
*P<0.05 in two-tailed test for comparison of two proportions with no sampling weights; 95% CI: confidence interval at 95% estimated using a normal approximation and sampling weights.