Table2.
Comparison of Blood Lead Level Based on Demographic Characteristics in 2 Groups.
| Variable | Alzheimer Group | Healthy Group |
|---|---|---|
| Age group | ||
| 55-65 years | 36.8 (3.8-58.5)a | 4.85 (3.07-7.45) |
| 65-75 years | 4.6 (3.6-16.1) | 6.70 (4.70-8.10) |
| Above 75 years | 3.3 (2.2-39.3) | 5.40 (7.70-8.65) |
| Test result | χ2 = 3.78, P = .15 | χ2 = 3.08, P = .21 |
| Gender | ||
| Male | 4.9 (3.8-50.7) | 6.70 (4.00-8.10) |
| Female | 4.6 (2.9-31.3) | 5.60 (3.52-8.00) |
| Test result | z = 0.83, P = .43 | z = 0.85, P = .39 |
| Education | ||
| Primary | 7.5 (3.8-50.7) | 5.70 (3.95-7.60) |
| Diploma | 2.8 (2.0-3.6) | 7.25 (3.60-8.77) |
| Higher bachelor | – | 10.50 (7.30-11.36) |
| Test result | z = 5.87, P = .01 | χ2 = 2.51, P = .28 |
| Occupation | ||
| Industrial status | 51.1 (3.8-51.1) | 7.40 (6.77-8.97) |
| Other | 4.8 (3.5-41.9) | 5.60 (3.90-7.70) |
| Test result | z = 0.78, P = .46 | z = 1.59, P = .11 |
| Addiction | ||
| Yes | 54.5 (41.9-78.5) | 7.15 (5.20-13.30) |
| No | 3.8 (2.8-5.5) | 5.80 (3.90-8.10) |
| Test result | z = 3.67, P < .001 | z = 1.53, P = .13 |
aMedian (interquartile range); z, test statistics for Mann-Whitney U test; χ2, test statistics χ2 test.