Table 2. Scores of pain intensity/interference and percentage of pain relief (n = 64).

Items	Mean (SD)/Number of Patients (%)	95%CI
Pain intensity in the past 24 hours
The worst	5.88 (2.32)	6.17 to 5.59
The least	3.25 (2.13)	3.5 to 2.98
The average	4.45 (1.92)	4.69 to 4.21
Right now	2.19 (1.73)	2.41 to 1.97
Pain interfered with daily function
General activity	5.23 (2.05)	5.48 to 4.97
Mood	4.17 (2.12)	4.43 to 3.90
Walking ability	3.45 (2.01)	3.70 to 3.19
Normal work	4.34 (1.92)	4.56 to 4.08
Relations with other people	3.41 (1.23)	3.56 to 3.25
Sleep	4.75 (1.85)	4.98 to 4.51
Enjoy of life	3.45 (1.26)	3.61 to 3.29
Pain relief in the past 24 hours
30%	12 (18.75)	13.34% to 24.16%
30–50%	21 (32.81)	30.08% to 36.31%
51–80%	22 (34.38)	51.62% to 60.89%
80%	9 (14.06)	80.14% to 81.57%
Average	46.95%	34.72% to 59.18%