Table 2.

Overview of factors of risk for suicide in Autism Spectrum Disorder (ASD). Most vulnerable population with ASD (modified from [24, 25]).

	Factors and variables	Studies
Biological	Genetic and biological factors (adolescence, gender, and ethnicity)	[26–28]
	History of relatives (psychiatric disorder or suicide)	[27, 28]
	Substance abuse	[28]
	Comorbidity	Anxiety [29] Depression [25, 27, 28, 30]
Psychological	Impulsiveness	[31]
	Higher cognitive, social development, and communication levels	[24]
	Life events and effects brought by characters came from domain of repetitive and restricted behaviours and thoughts: frequent abuse and school bullying	[27, 32–34]
Social	Poorer social support networks: social isolation	[35]