Table 2.
Comparison of the confidence interval and odds ratio in children with constipation and their controls on the basis of lead level and demographic data (Mantel Haenszel test)
| Variable | Confidence Interval | Odds ratio | |
|---|---|---|---|
| Age | >7 | 2.472-14.863 | 6.061 |
| ≤7 | 0.149-49.533 | 2.714 | |
| Sex | Boy | 2.261-20.362 | 6.785 |
| Girl | 1.554-22.150 | 5.867 | |
| Age of residential building | New | 1.267-13.992 | 4.226 |
| Old | 1.929-25.922 | 7.071 | |
| Traffic of residential area | High traffic | 0.827-12.126 | 3.164 |
| Low traffic | 2.049-21.169 | 6.585 | |
| Parents’ Job | Low risk | 1.429-11.601 | 4.071 |
| High risk | 2.166-136.368 | 17.188 | |
| Area of residence | Urban | 2.530-15.316 | 6.225 |
| Rural | 0.319-50.229 | 4.0 |