Table 1.

Psychiatrist interrater reliability (Cohen’s kappa κ) for pediatric delirium by assessment (N = 38)

	Paired Assessments n (%)	Delirium Dx by Two Raters (n)	Disputed Delirium Dx by One Rater (n)**	κ (95% CI)
Overall*	38 (100%)	12	1	0.94 (0.83–1.00)
Age
0–24 m	13 (34%)	3	1	0.81 (0.45–1.00)
2–5 yr	11 (29%)	5	0	1.00
6–21 yr	14 (37%)	4	0	1.00
Devel. delay
No	27 (71%)	6	1	0.90 (0.71–1.00)
Yes	11 (29%)	6	0	1.00
Intubated
No	23 (61%)	6	1	0.89 (0.70–1.00)
Yes	15 (39%)	6	0	1.00

Abbreviations: m = months; yr = years; Dx = diagnosis; CI = confidence interval; devel. delay = developmental delay.

^*38 paired assessments were administered across 17 patients, with 65% (11/17) undergoing multiple assessments.

^**The discordant assessment occurred in a one-month-old non-intubated patient with age-appropriate development.