Table 2.

Frequency, Duration, and Onset of Phasic and Tonic Irritability by Weighted Quantiles for Participants Reporting Either Tonic or Phasic Irritability

	3-Month Frequency						Average Duration (in minutes)						Onset (in years)
	Phasic			Tonic			Phasic			Tonic			Phasic	Tonic
Quantiles	9–12	13–16	Total	9–12	13–16	Total	9–12	13–16	Total	9–12	13–16	Total	Total	Total
95%	90	93	91	240	270	270	49.8	60	60	120	270	180	0.0	0.0
90%	40	49	48	138	180	180	30	30	30	60	150	120	0.0	0.0
75%	15	18	16	90	90	90	15	15	15	30	60	45	2.0	2.5
50%/Median	6	6	6	26	36	36	7.2	5	5	11	18	15	4.5	5.5
25%	2	3	2	12	12	12	3	2	2	5	7	5	7.5	9.5

Note: Frequency threshold heuristics: 13 ≤ Up to once a week; 45 = More days than not; 90 = Once a day; 180 ≥ 2+ times per day.