Table 3.

Comparison of complications between the two study groups

	PIA (n = 168)	PBA (n = 170)	RR	95% CI	P-value
Delirium	47 (28%)	28 (16.5%)	1.70	1.29 to 1.93	0.030
3rd day incidence	21 (12.5%)	15 (8.8%)	1.42	1.22 to 1.71	0.034
7th day incidence	26 (15.5%)	13 (7.7%)	2.01	1.48 to 2.46	0.012
PVS	5 (3%)	4 (2.4%)	1.25	0.94 to 1.27	0.730
Atelectasis	6 (3.6%)	6 (3.5%)	1.02	0.76 to 1.19	0.065
Hemorrhage	1 (0.6%)	1 (0.6%)	1.00	0.42 to 1.12	0.865
Pneumonia	3 (1.8%)	2 (1.2%)	1.5	0.51 to 1.98	0.520
Incision infection	2 (1.2%)	2 (1.2%)	1.00	0.56 to 1.14	0.225
DVT	5 (3%)	3 (1.8%)	1.67	0.89 to 2.13	0.445
Ileus	11 (6.5%)	7 (4.1%)	1.59	0.94 to 2.18	0.976
AF	10 (6%)	8 (4.7%)	1.28	0.75 to 1.81	0.617

All comparisons were not statistically significant (P > 0.05), except for delirium (P < 0.05)

Abbreviations: RR Relative risk, PVS Postoperative ventilation support, DVT Deep vein thrombosis, AF Atrial fibrillation