Table 3.

Summary of salient features in SIN3A-related disorder based on current cohort and previously published literature.

Clinical feature	Current cohort (n = 28)	Witteveen et al. [1] (n = 9)	Narumi-Kishimoto [3] (n = 1)	Total (n = 38)
Intellectual disability	16	7	1	24
Mild	8	5	–	13
Moderate	7	2	1	10
Severe	1	–	–	1
Speech delay	11	2	1	13
Hypotonia	12	2	–	14
Feeding difficulties	15	N/R	–	15
Short stature	6	2	–	8
Epilepsy	4	1	–	5
Behavioural problems	12	4	1	17

N/R not reported, overlap between mild-moderate ID reported as mild.