Table 1.

Frequency of the different types of variants reported for the IDS gene. Total number of variants n = 658 (source: HGMD professional 2019.1).

Type of Variants	Frequency (%)
Missense/nonsense variants	49.8
Small deletions	19.0
Splicing variants	9.2
Gross deletions	8.2
Small insertions	7.9
Complex rearrangements	3.0
Small indels	2.3
Gross insertions	0.6