Table 1.

Subtypes of attention deficit hyperactivity disorder (based on DSM-5)

Subtypes	Predominantly inattentive (ADD)	Predominantly hyperactivity/ impulsivity	Combined ADHD
Criteria	6 of 9 inattentive symptoms	6 of 9 hyperactivity/ impulsivity symptoms	Both criteria for (1) and (2)
Details	Fails to pay close attention to details or makes careless mistakes	Squirms and fidgets
	Has difficulty sustaining attention	Can’t stay seated
	Does not appear to listen	Runs/climbs excessively
	Struggles to follow through on instructions	Can’t play/work quietly
	Has difficulty with organization	“On the go”/“driven by a motor”
	Avoids or dislikes tasks requiring a lot of thinking	Blurts out answers
	Loses things	Is unable to wait for his turn
	Is easily distracted	Intrudes/interrupts others
		Talks excessively
Other criteria	Onset before age of 12, lasting more than 6 mo, symptoms pervasive in 2 or more settings, causing significant impairment of daily functioning o development

ADHD: Attention deficit hyperactivity disorder.