Table 2.

Distribution of outcomes per shift LOS quartiles

Shift LOS	1st Quartile (<2.6 h)	2nd Quartile (2.6–3.4 h)	3rd Quartile (3.5–4.4 h)	4th Quartile (>4.5 h)
% Admission (95% CI)	2.8 (2.6, 2.9)	4.8 (4.6, 5.0)	9.0 (8.8, 9.3)	16.9 (16.6, 17.2)
% PICU admission (95% CI)	0.1 (0.1, 0.2)	0.2 (0.2, 0.2)	0.3 (0.3, 0.4)	1.3 (1.2, 1.4)
% Mortality/1000 (95% CI)	0.0 (0, 0.1)	0.1 (0, 0.2)	0.1 (0, 0.3)	0.8 (0.6, 0.1)
% RTED (95% CI)	11.0 (10.7, 11.2)	10.7 (10.4, 11.0)	10.4 (10.1, 10.7)	9.8 (9.6, 10.1)

CI confidence interval; LOS length of stay; PICU paediatric intensive care unit; RTED return to emergency department