The effect of body position on compartmental intra-abdominal pressure following liver transplantation

Annals of Intensive Care

Table 1 Comparison of IBP, LIAP and UIAP

Comparisons		Number	Mean IAP	Range IAP	COVA IAP	r ^a	p	Bias	Precision	LLA	ULA	% Error
IBP vs LIAP	All	338	9.43	0.0 to 19.0	43.6	0.99	< 0.001	0.03	0.59	-1.14	1.18	13
	Supine	169	9.23	0.5 to 18.0	43.7	0.99	< 0.001	0.06	0.62	-1.16	1.28	13
	30° HOB	169	9.63	0.0 to 19.0	43.6	0.99	< 0.001	-0.01	0.55	-1.07	1.09	11
IBP vs UIAP	All	338	10.07	1.5 to 19.5	39.7	0.66	< 0.001	-1.25	3.63	-8.36	5.86	72
	Supine	169	10.49	2.5 to 19.5	38.9	0.70	< 0.001	-2.46	3.52	-9.36	4.44	67
	30° HOB	169	9.65	1.5 to 18.5	39.9	0.68	< 0.001	-0.05	3.34	-6.60	6.5	69
LIAP vs UIAP	All	338	10.06	1.5 to 19.5	39.8	0.66	< 0.001	-1.28	3.63	-7.31	4.75	72
	Supine	169	10.46	2.5 to 19.5	39.3	0.70	< 0.001	-2.51	3.47	-9.31	4.29	66
	30° HOB	169	9.66	1.5 to 18.0	40.1	0.68	< 0.001	-0.05	3.36	-6.64	6.54	70

The patient positioned supine and in a 30° head of bed angle. IBP, intra-bladder pressure; LIAP, lower intra-abdominal pressure; UIAP, upper intra-abdominal pressure; HOB, head of bed, IAP, intra-abdominal pressure; COVA; coefficient of variance; LLA, Lower level of agreement; ULA, Upper level of agreement. ^a r = Pearson product-moment correlation coefficient.