Table 5.
Cognitive outcomes in Thai children, at mean age 5.7 years, by group.
| n | 5.7 years | Mean difference (95% CI) | Pa | |
|---|---|---|---|---|
| WPPSI-III, verbal IQb | ||||
| Iodine | 77 | 90.9 (± 9.3) | −0.5 (−3.5 to 2.6) | 0.78 |
| Placebo | 79 | 91.3 (± 10.2) | ||
| WPPSI-III, performance IQ | ||||
| Iodine | 77 | 101.7 (± 12.9) | −2.0 (−6.2 to 2.3) | 0.42 |
| Placebo | 79 | 103.7 (± 14.3) | ||
| WPPSI-III, processing speed | ||||
| Iodine | 77 | 114.3 (± 12.4) | −0.2 (−4.2 to 3.8) | 0.75 |
| Placebo | 79 | 114.5 (± 13.0) | ||
| WPPSI-III, full scale IQ | ||||
| Iodine | 77 | 97.5 (± 10.4) | −1.0 (−4.4 to 2.3) | 0.55 |
| Placebo | 79 | 98.5 (± 11.1) | ||
| BRIEF-P, global executive | ||||
| Iodine | 77 | 112.8 (± 19.1) | 0 (−6.0 to 6.0) | 0.98 |
| Placebo | 79 | 112.7 (± 19.2) | ||
a
Data were analyzed using linear mixed effect models testing treatment effect while controlling for household average monthly income, maternal education, child's birthweight, child's age and child's sex.
b
Mean (±SD) (all such values).
BRIEF-P, Behavior Rating Inventory of Executive Function Preschool Version; IQ, intelligence quotient; WPPSI-III, Wechsler Preschool and Primary Scale of Intelligence Third Edition.