Estimates of current use of water-pipe and of pipe/chopoq, Iran, 2007
| Variable | Subcategory | Current use of water-pipe | Current use of pipe and chopoq | ||
| Burden | Prevalence (95% CI) | Burden | Prevalence (95% CI) | ||
| Age | 15–24 | 489710 | 2.8% (1.8 to 4.1) | 39700 | 0.2% (0.1 to 0.9) |
| 25–34 | 338520 | 2.7% (1.9 to 3.7) | 36150 | 0.3% (0.1 to 0.9) | |
| 35–44 | 266250 | 3.0% (2.2 to 3.9) | 64300 | 0.7% (0.3 to 1.6) | |
| 45–54 | 173120 | 2.8% (1.9 to 4.0) | 5655 | 0.1% (0.0 to 0.7) | |
| 55–64 | 73300 | 2.2% (1.5 to 3.3) | 6675 | 0.2% (0.0 to 0.8) | |
| Sex | Male | 876350 | 3.5% (2.7 to 4.7) | 140400 | 0.6% (0.3 to 0.9) |
| Female | 464550 | 1.9% (1.4 to 2.5) | 12080 | 0.0% (0.0 to 0.4) | |
| Residential area | Urban | 763100 | 2.2% (1.7 to 2.8) | 114300 | 0.3% (0.2 to 0.6) |
| Rural | 577800 | 4.0% (3.0 to 5.3) | 38180 | 0.3% (0.1 to 0.9) | |
| TOTAL | 1340900 | 2.7% (2.2 to 3.4) | 152480 | 0.3% (0.2 to 0.5) | |