Characterisation of sleep in intensive care using 24-hour polysomnography: anobservational study

Table 2 Sleep outcomes: subjective reports

Outcomes	Patients (n = 48)
ISI^ascore, median (IQR^b)	6.00 (1.00-13.75)
ISI score ≥15, n (%)	10 (21)
Sleep quality pre-hospitalisation, median (IQR), 1-10	8.00 (5.00-9.00)
	Patients (n = 40)
Total RCSQ^cscore in ICU, median (IQR), mm	57.50 (32.00-70.00)
	Patients (n = 45)
Total RCSQ score in ward, median (IQR), mm	57.40 (36.70-74.40)^d
	Patients (n = 43)
Sleep disturbing factors (SICQ^e), mean(SD^f), 1-10
Noise	5.70 (2.75)
Nursing interventions	5.05 (2.44)
Light	5.15 (2.61)
Diagnostic testing	4.49 (2.67)
Vital signs	4.25 (2.12)
Blood samples	4.01 (2.20)
Administration of medications	3.84 (2.12)

^aISI, Insomnia Severity Index; ^bIQR,interquartile range = standard deviation; ^cRCSQ, RichardsCampbell Sleep Questionnaire; ^drelated samples Wilcoxonsigned ranks test comparing total RCSQ ICU and ward scores P = 0.61,^eSICQ, Sleep in Intensive Care Questionnaire;^f SD, standard deviation.

ISSN: 1364-8535