Table 2.

Cumulative incidence estimates.

Article	n	Cumulative Incidence Estimate	Follow up
Children with I/DD
Berkson et al., 2001	39	SIB = 1.3%; proto-injurious =2.2%, transient SIB = 2.6%	1–3 yrs
Dimian et al., 2017	235	22%	12 mos
Richman & Lindauer, 2005	12	16.7%*	2–23 mos
Murphy et al., 1999	614	3%	12 mos
Davies & Oliver, 2016	417	4.7%	12 mos
Baghdadli et al., 2008	185	15.1%*	3 yrs
Richards et al., 2016	67	17.5%	36 mos
Adolescents and adults with I/DD
Cooper et al., 2009	651	0.6%	2 yrs
Kiernan & Alborz, 1996	34	0%	5 yrs
Nøttestad & Linaker, 2001	68	22%*	8 yrs
Totsika et al., 2008	58	16.3%*	11 yrs
Laverty et al., 2020	67	T1-T3: 10.8%* T2-T3: 6.9%*	10 yrs

Notes:

^*indicates that the incidence estimate was not reported in the article, the first author calculated the estimate base on the data reported.