SRTT | SDST | |||||
---|---|---|---|---|---|---|
(visual motor speed) | (attention/perception) | |||||
 |  |  | % change in |  |  | % change in |
 |  |  | score with a |  |  | score with a |
 |  |  | 1 μg/L increase |  |  | 1 μg/L increase |
 | N | β Cd a | in Cd b (95%CI) | N | β Cd a | in Cd b (95%CI) |
Model 1 | 2286 | 0.0299* | 2.99* (1.39, 4.59) | 2371 | 0.0922* | 9.22* (6.99, 11.44) |
Model 2 | 1986 | −0.0088 | −0.88 (−2.69, 0.93) | 2050 | 0.0193* | 1.93* (0.05, 3.81) |
SDLT | ||||||
(learning recall/short-term memory) | ||||||
SDLT trials-to-criterion | SDLT total-error-score | |||||
 | N | OR Cd c | (95%CI) | N | OR Cd c | (95%CI) |
Model 1 | 2270 | 1.70 | (0.99 – 2.93) | 2301 | 2.25* | (1.67 – 3.05) |
Model 2 | 1967 | 1.12 | (0.82 - 1.53) | 1991 | 1.45 | (0.99 – 2.14) |