RESULTS
Subjects.-Demographic characteristics of the subjects are reported
in Table 1. There were more women than men, their average
age was 71 years, and they exhibited grade 1 obesity
[25-29.9 kg/m2;(25)]. There were no significant differences between
groups for any of the demographic characteristics. Ninetyfive
percent of the subjects were Caucasian, 64% were married,
and 95% had completed high school or more education.
Fifty-four percent of the participants reported comorbidities
in addition to OA. The most common comorbidity was hypertension