From: Transdermal fentanyl for the treatment of pain caused by osteoarthritis of the knee or hip: an open, multicentre study
Screening N (%)
Baseline N (%)
Endpoint N (%)
Very poor
27 (19)
36 (25)
4 (3)
Poor
110 (77)
68 (48)
21 (14)
Moderate
5 (3)
53 (37)
Good
1 (1)
2 (2)
54 (38)
Excellent
0
11 (8)