Effect of intra-abdominal pressure on respiratory function in patients undergoing ventral hernia repair

Table 3 Concordance between the two intra-abdominal pressure measurements during different study stages

	All measurements	AI	VHR	END	SB	1 HR
Number of measurements	133	29	28	26	23	27
Concordance correlation coefficient	0.74	0.61	0.84	0.62	0.81	0.69
95%CI	0.65-0.80	0.33-0.79	0.69-0.92	0.34-0.80	0.63-0.90	0.45-0.84
Precision	0.75	0.63	0.85	0.65	0.84	0.73
Accuracy	0.98	0.96	0.98	0.95	0.96	0.95

Precision: Pearson’s correlation coefficient; Accuracy: bias correction factor; AI: After intubation; VHR: After ventral hernia repair; END: End of surgery; SB: During spontaneous breathing through the endotracheal tube; 1 HR: One hour after extubation.