Table 2. Comparison of the CAM scores.

	Time to perform anterior iliopsoas muscle space block		t	P value
	Day before surgery (n = 37)	Hour before surgery (n = 39)
First postoperative day	17.24 ± 2.45	18.00 ± 2.98	−1.204	0.232
Second postoperative day	15.68 ± 3.04	16.56 ± 3.30	−1.220	0.227
Third postoperative day	14.70 ± 2.74	15.41 ± 3.12	−1.049	0.298
Fifth postoperative day	13.86 ± 2.35	14.90 ± 3.35	−1.547	0.126
Seventh postoperative day	13.95 ± 3.26	14.21 ± 2.97	−0.363	0.718