The Korean Journal of Pain

Table. 1. Table 1

Comparison of QOL, PSS,NRS, and daily consumption of morphine from preoperative to postoperative

Indexes	Preoperative (n = 31)	Postoperative
Indexes	Preoperative (n = 31)	1 d (n = 31)	1 wk (n = 31)	1 mo (n = 30)	2 mo (n = 29)
QOL scores	1.2 ± 1.0	5.3 ± 0.8^a	6.8 ± 1.2^a	7.2 ± 0.9^a	7.3 ± 1.1^a
PSS scores	1.3 ± 0.5	6.5 ± 1.1^a	7.2 ± 1.0^a	6.8 ± 2.5^a	7.2 ± 2.1^a
NRS scores	7.6 ± 2.1	3.7 ± 1.0^a	2.6 ± 0.7^a	2.8 ± 0.6^a	2.9 ± 0.8^a
Daily consumption of morphine (mg/d)	182 ± 36	90 ± 14^a	52 ± 7^a	60 ± 11^a	58 ± 9^a

Values are presented as mean ± standard deviation.

QOL: quality of life, PSS: patient satisfaction scale, NRS: numeric rating scale.

^aP < 0.001, compared with the patients in the preoperative time.