Table 2.

Postoperative numeric rating scale for pain intensity

Postoperative hours	Young patients (n=1,344)	Elderly patients (n=1,091)	P-value
0–6 hours	4.2±3.1	4.3±3.1	0.921
6–12 hours*	4.8±2.6	4.1±2.9	<0.001
12–18 hours*	4.1±2.3	3.3±2.6	<0.001
18–24 hours*	3.5±2.1	3.0±2.4	<0.001
24–48 hours*	3.2±1.8	3.1±2.1	<0.001

Notes:

^*P<0.05. Values are presented as mean ± standard deviation.