Table 3.
Association (prevalence ratio) between blood lead concentrations and behavior ratings by teachers, comparing children with BLL ≥5 to those with <5 µg/dL (n = 206).
| Behavior Rating Sub-Scale (T score) | Unadjusted | Covariate-Adjusted 1 |
|---|---|---|
| PR [95% CI] | PR [95% CI] | |
| CTRS-R:S 2 | ||
| Oppositional | 1.00 [0.93, 1.07] | 0.98 [0.91, 1.06] |
| Cognitive Problems/Inattention | 1.03 [0.96, 1.11] | 1.02 [0.97, 1.08] |
| Hyperactivity | 1.03 [0.96, 1.10] | 1.01 [0.95, 1.08] |
| ADHD Index | 1.02 [0.96, 1.09] | 1.01 [0.95, 1.07] |
| BRIEF 3 | ||
| Inhibit | 1.03 [0.97, 1.10] | 1.02 [0.96, 1.09] |
| Shift | 1.03 [0.97, 1.10] | 1.02 [0.96, 1.08] |
| Emotional Control | 1.04 [0.96, 1.12] | 1.02 [0.95, 1.10] |
| Initiate | 1.04 [0.97, 1.13] | 1.03 [0.96, 1.10] |
| Organization of Materials | 1.00 [0.94, 1.07] | 0.99 [0.93, 1.05] |
| Working Memory | 1.03 [0.96, 1.11] | 1.02 [0.95, 1.09] |
| Plan/Organize | 1.03 [0.96, 1.12] | 1.02 [0.95, 1.09] |
| Monitor | 1.02 [0.95, 1.10] | 1.01 [0.94, 1.08] |
| Behavioral Regulation Index | 1.05 [0.98, 1.13] | 1.04 [0.97, 1.11] |
| Metacognition Index | 1.03 [0.96, 1.11] | 1.01 [0.95, 1.08] |
| Global Executive Composite | 1.04 [0.97, 1.12] | 1.02 [0.96, 1.09] |
1 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.