Annals of Intensive Care

Table 4 Characteristics of the patients according to ICU mortalities

From: Effects of zero reference position on bladder pressure measurements: an observational study

	Total(n= 100)	ICU mortalities
		Survivors ( n = 85)	Non-survivors( n = 15)	p value
Female gender	52 (52.0%)	46 (54.1%)	6 (40.0%)	0.466^a
Age (years)	53.5 ± 16.1	51.5 ± 15.7	64.7 ± 13.8	0.003^b
BMI (kg/m²)	27.2 ± 10.0	27.9 ± 10.7	23.3 ± 2.8	0.508^b
Emergency surgery	55 (55.0%)	44 (51.8%)	11 (73.3%)	0.205^a
Bariatric surgery	24 (24.0%)	24 (28.2%)	0 (0.0%)	0.019^c
APACHE II	11.2 ± 1.7	9.3 ± 1.5	13.1 ± 2.0	< 0.0001^b
SOFA	4.5 ± 2.8	3.9 ± 2.2	6.4 ± 3.4	0.021^b
IAP_MAL (mmHg)	8.5 ± 2.8	8.1 ± 2.4	8.6 ± 2.8	0.505^b
IAP_SP (mmHg)	6.5 ± 2.8	6.3 ± 3.0	6.6 ± 2.7	0.743^b

^aChi square test with Yates's correction for continuity; ^bMann-Whitney U test; ^cFisher's exact test. APACHE, Acute Physiology and Chronic Health Evaluation II; BMI, body mass index; IAH, intra-abdominal hypertension; IAP_MAL, intra-abdominal pressure at midaxillary line; IAP_SP, intra-abdominal pressure at symphysis pubis; SOFA, Sequential organ failure assessment.

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