Table 1.

Patients’ Demographics (N = 44)

Demographic	Results
Age, mean ± SD (y)	64.6 ± 12.3
Average BMI, mean ± SD	26.9 ± 3.1
Weight, lbs, mean ± SD	160.3 ± 15.1
Geographic distribution	Continental United States
Gender
Men	55%
Women	45%
Ethnicity
Caucasian	87.7%
African American	9.3%
Other (Asian, Latino, Native American, etc)	3.0%
Pain descriptors
Mean pain levels at screening (0–10), ± SD	2.85 ± 0.7
Duration	≥1 y
Occurrences of pain	≥5/wk

Abbreviations: SD, standard deviation; BMI, body mass index.