Table 4.

Outcomes Per Patient on Sleep Protocol and All Admission Days.

	Preimplementation (n = 78)	Postimplementation (n = 84)	P value
Outcomes evaluated on sleep protocol days
Median number of delirium-free days [IQR]	1 [0–2.5]a	1 [0–2]b	0.48
Median RCSQ score [IQR]	59.4 [43.2–71.6]c	61.2 [49.9–75.5]c	0.20
Median number of optimal sleep nights [IQR]	1 [0–2]c	1 [0–2]c	0.95
Outcomes evaluated on all admission days
Median duration of MV, days [IQR]	8 [4–10]d	4 [2–7]d	0.03
Median duration of MV, days [IQR], excluding mortality patients	7 [3–9]e	3 [2–5]f	0.01
Median ICU length of stay, days [IQR]	5.5 [4–10]	4 [3–7]	0.10
Median ICU length of stay, days [IQR], excluding mortality patients	5 [3.5–8.5]g	4 [3–6]a	0.12
Median hospital length of stay, days [IQR]	13 [7–22.3]	8 [6–17]	0.05
Median hospital length of stay, days [IQR], excluding mortality patients	15 [7–23.5]g	8 [6–15]a	0.02
In-hospital mortality, n (%)	13 (16.7)	15 (17.9)	1.00

Abbreviations: ICU, intensive care unit; IQR, interquartile range; MV, mechanical ventilation; RCSQ, Richards-Campbell Sleep Questionnaire.

^an = 69.

^bn = 80.

^cn = 74.

^dn = 35.

^en = 27.

^fn = 25.

^gn = 65.