Table 1.

Participants’ demographics and clinical characteristics.

Demographics and clinical characteristics	Randomization Arm
	ARa Glasses (n=10)	PALSb pocket cards (n=10)
Age in years, mean (SD)	27.9 (2.6)	29.2 (2.6)
Sex (female), n (%)	9 (90)	6 (60)
Years of residency, mean (SD)	2.4 (1.7)	2.4 (1.7)
Number of residents having been enrolled in > 5 resuscitations in the past, n (%)	4 (40)	3 (30)
Number of PALS providers among residents, n (%)	6 (60)	7 (70)
Number of BLSc providers among residents, n (%)	10 (100)	10 (100)
Level of self-confidence in following AHA guidelines (on a scale of 1 to 5), mean (SD)	1.8 (1.2)	2.4 (0.8)

^aAR: Augmented Reality.

^bPALS: Pediatric Advanced Life Support.

^cBLS: Basic Life Support.