Table 4.

Adverse Outcome per Study Arm

	Placebo	Iodine	Bolus 4 μg/kg	Continuous 4 μg/kg	Bolus 8 μg/kg	Continuous 8 μg/kg	Bolus 16 μg/kg	Continuous 16 μg/kg	Total group
Total in study, n	28	25	24	27	20	27	7	8	166
3 year follow-up not done, n	10	7	12	5	3	6	1	1	45
3 year outcome known, n	18	18	12	22	17	21	6	7	121
Outcome at age 3 years
Neonatal death, n	5	4	2	4	6	6	3	2	32
Abnormal development, n	1	2	0	2	2	1	0	0	8
Death or abnormal development*, %	33%	33%	17%	27%	47%	33%	50%	29%	33%

^*Abnormal development: moderate or severe cognitive delay in development and/or cerebral paresis and Gross Motor Function Classification System ≥2.