Gender differences in outcome and use of resources do exist in Swedish intensive care, but to no advantage for women of premenopausal age

Table 1 Description of the study groups with respect to Simplified Acute Physiology Score III admission characteristics, demographics and outcomes^a

		All admissions	Male	Female	P -value^b
Number of admissions (%)		127,254	72,295 (57 %)	54,959 (43 %)
Median age, yr (IQR)		64 (45 to 75)	64 (47 to 74)	63 (43 to 75)
Median SAPS III score (IQR)		52 (41 to 64)	53 (42 to 65)	52 (41 to 63)	<0.001
Median SAPS III EMR (IQR)		0.21 (0.07 to 0.44)	0.22 (0.08 to 0.46)	0.21 (0.07 to 0.42)	<0.001
Median length of ICU stay, hr (IQR)		24 (12.7 to 60.6)	24.8 (12.7 to 65.3)	23.3 (12.6 to 53.4)	<0.001
Median NCR11 score (IQR)		56 (30 to 127)	58 (30 to 137)	53 (29 to 115)	<0.001
ICU mortality, % (95% CI)		8.2 (8.1 to 8.4)	8.4 (8.2 to 8.6)	7.9 (7.7 to 8.1)	<0.001
30-day mortality, % (95% CI)		17.7 (17.5 to 17.9)	18.0 (17.7 to 18.3)	17.2 (16.9 to 17.5)	<0.001
90-day mortality, % (95% CI)		21.8 (21.6 to 22.0)	22.3 (22.0 to 22.6)	21.3 (21.0 to 21.6)	<0.001
Proportion of cohort with SAPS III reason for admission,^c %
	Basic and observation	15	14	16	<0.001
	Cardiovascular	33	34	32	<0.001
	Hepatic	19	18	20	0.001
	Gastrointestinal	29	29	30	<0.001
	Neurologic	48	47	49	0.04
	Renal	27	28	27	<0.001
	Respiratory	49	48	50
	Hematologic	20	19	21
	Metabolic	32	30	35	<0.001
	Trauma	25	26	22	<0.001
	Other	25	24	27	<0.001

^aCI, Confidence interval; EMR, Estimated mortality risk; ICU, Intensive care unit; IQR, Interquartile range; NCR11, Nursing Care Recording System; SAPS III, Simplified Acute Physiology Score III. ^b P-value for sex difference. ^cAn admission can be assigned several SAPS III reasons for admission to ICU.

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