Noninterventional Study of Transdermal Fentanyl (Fentavera) Matrix Patches in Chronic Pain Patients: Analgesic and Quality of Life Effects

Table 2

Patients demographics and the causes and sources of their pain.

(a)

Patients
Sample size (number)	426
Female (number, %)	180, 42.25
Male (number, %)	238, 55.87
Unknown gender (number, %)	8, 1.88
Age (years) ( = 414)
Mean ± sd	64.7 ± 14.4
Median	67.0
Range	24–96
Height (cms) ( = 415)
Mean ± sd	169.6 ± 10.4
Median	170.0
Range	140–198
Weight (kg) ( = 416)
Mean ± sd	75.5 ± 10.4
Median	73.0
Range	37–186

(b)

Pain properties	Number	% of patients
Cause ( = 426)
Cancer	122	28.6
Noncancer	127	29.8
Chemotherapy	28	6.6
Postoperative	50	11.7
Radiotherapy	25	5.9
Other	142	33.3
Missing data	23	5.4
Source
Bone	281	66.0
Neural tissue	197	46.2
Soft tissue	137	32.2
Visceral tissue	69	16.2

sd: standard deviation; several patients had pain from more than one source.