Effect of programmed comprehensive nursing on delirium incidence in intensive care unit children following severe cardiac surgery

Table 3 Comparison of sleep states (mean ± SD, points)

Group	Sleep depth		Sleep latency		Night awakening		Return to sleep		Sleep quality
	Preoperative	ICU discharge	Preoperative	Preoperative	ICU discharge	Preoperative	ICU discharge	ICU discharge	Preoperative	ICU discharge
Observation group (n = 90)	83.18 ± 6.28	71.64 ± 5.72a	85.50 ± 5.89	80.68 ± 6.52	68.84 ± 4.90a	81.78 ± 6.82	73.52 ± 5.78a	73.18 ± 4.94a	82.78 ± 6.86	74.52 ± 5.80a
Control group (n = 90)	82.71 ± 6.35	64.84 ± 5.86a	84.93 ± 6.13	81.72 ± 6.80	61.37 ± 5.18a	82.16 ± 6.90	65.10 ± 5.81a	63.84 ± 4.87a	83.16 ± 7.15	66.89 ± 5.93a
t value	0.499	7.878	0.636	1.047	9.939	0.372	9.747	12.773	0.364	8.726
P value	0.618	< 0.001	0.526	0.296	< 0.001	0.711	< 0.001	< 0.001	0.716	< 0.001

^aP < 0.05 compared with preoperative parameters in the same group.

ICU: Intensive care unit.