Table 1. Study groups with numbers and ages of CKCS in the three study cohorts.

	Hindbrain study				Whole brain study
age	Control	CM pain	SM	Total	Control	CM pain	SM	Total
≥5years	31	16	18	66	7	11	7	25
3–4.9 years	0	4	23	27	7	6	7	20
<3yrs	0	8	30	37	2	8	17	27
Total	31	28	71	130	16	25	31	72