. 2020 Mar 2;180(5):1–9. doi: 10.1001/jamainternmed.2020.0148

Table 2. QTPM Exposure and Class by Autopsy-Adjudicated Outcome.

Exposure/Class	Presumed Sudden Cardiac Death (n = 525)	Trauma Controls (n = 104)	P Value, Trauma Controls vs SCD	Presumed SCD			Occult Overdose SCD (n = 71)	P Value, Occult Overdose vs Trauma Controls
Exposure/Class	Presumed Sudden Cardiac Death (n = 525)	Trauma Controls (n = 104)	P Value, Trauma Controls vs SCD	SAD (n = 293)	Non-SAD (n = 232)	P Value, SAD vs Non-SAD	Occult Overdose SCD (n = 71)	P Value, Occult Overdose vs Trauma Controls
QT score, median (IQR)	1 (0-2)	0 (0-1)	<.001	1 (0-2)	1 (0-4)	<.001	3 (1-5)	<.001
Any QTPM, No. (%)	291 (55.4)	28 (26.9)	<.001	150 (51.2)	141 (60.8)	.13	54 (76.1)	<.001

Abbreviations: IQR, interquartile range; QTPM, QT-prolonging medication; SAD, sudden arrhythmic death; SCD, sudden cardiac death.