Table 1.

Patient demographics for the 160 total patients enrolled in the VAS portion of the study. The demographics are also listed for the subgroup, 95 total patients, of this population for which WOMAC and PGIC scores were obtained.

	Number of patients	Average age (± SEM)	Percent male
Total VAS	160	63.2 ± 0.97	48.1%
Males	77	62.5 ± 1.44	—
Females	83	64.4 ± 1.31	—
Patients < 65 years old	82	53.3 ± 0.83	52.4%
Patients ≥ 65 years old	78	73.7 ± 0.77	43.6%
Total WOMAC and PGIC	95	64.3 ± 1.25	44.2%
Males	42	64.0 ± 1.85	—
Females	53	64.6 ± 1.71	—
Patients < 65 years old	46	54.2 ± 1.11	50.0%
Patients > = 65 years old	49	73.8 ± 0.99	38.8%