Table 2.
Association (prevalence ratio) between blood lead concentrations and behavior ratings by teachers among 5–8-year-old children from Montevideo, Uruguay (n = 206).
| Behavior Rating Scale (T score) | Unadjusted | Covariate-Adjusted 1 |
|---|---|---|
| PR [95% CI] | PR [95% CI] | |
| CTRS-R:S 2 | ||
| Oppositional | 1.00 [0.99, 1.02] | 1.00 [0.98, 1.02] |
| Cognitive Problems/Inattention | 1.01 [0.99, 1.02] | 1.01 [0.99, 1.02] |
| Hyperactivity | 1.01 [0.99, 1.02] | 1.01 [0.99, 1.02] |
| ADHD Index | 1.01 [0.99, 1.02] | 1.00 [0.99, 1.02] |
| BRIEF 3 | ||
| Inhibit | 1.01 [1.00, 1.03] ** | 1.01 [1.00, 1.03] * |
| Shift | 1.00 [0.99, 1.02] | 1.00 [0.99, 1.01] |
| Emotional Control | 1.01 [0.99, 1.03] | 1.01 [0.99, 1.02] |
| Initiate | 1.01 [0.99, 1.03] | 1.01 [0.99, 1.02] |
| Organization of Materials | 1.00 [0.98, 1.01] | 0.99 [0.98, 1.01] |
| Working Memory | 1.00 [0.98, 1.02] | 1.00 [0.98, 1.01] |
| Plan/Organize | 1.00 [0.99, 1.02] | 1.00 [0.98, 1.01] |
| Monitor | 1.01 [0.99, 1.02] | 1.01 [0.99, 1.02] |
| Behavioral Regulation Index | 1.01 [1.00, 1.03] * | 1.01 [1.00, 1.03] |
| Metacognition Index | 1.00 [1.00, 1.02] | 1.00 [1.00, 1.02] |
| Global Executive Composite | 1.01 [0.99, 1.02] | 1.01 [0.99, 1.02] |
1 Models adjusted for child IQ, child iron status, and body mass index, blood lead testing method, household possessions, maternal education, current parent smoking (yes/no). 2 CTRS-R:S = Conners Behavior Rating Scales for Teachers—Revised Short Form. 3 BRIEF = Behavior Rating Inventory of Executive Function for teachers. ** p < 0.05, * p < 0.1.