Table 2.

Baseline Characteristics of 241 Participants in the Improving Motivation for Physical Activity in Persons with Arthritis Clinical Trial (IMPAACT)

Enrollment through May, 2009

Knee Osteoarthritis	44.8
Rheumatoid Arthritis	55.2
Sex
Men	25.3
Women	74.7
Age
Age <50	26.1
Age 50–65	39.3
Age 66–75	22.2
Age 76+	12.5
Employed Full or Part Time	54.8
Education
High School/GED	19.1
Some College	20.7
College Graduate	60.2
Race and Ethnicity
African American	17.8
White/Other	75.1
Hispanic	7.1
Behavioral Risk Factor Measures
Drinks Alcohol Regularly	34.2
Current Smoker	7.5
BMI Level
Normal Weight (BMI >18.5 and <24.99)	33.2
Overweight (BMI >24.99 and <29.99)	32.8
Obese (BMI=>30)	31.1
Underweight	2.9
Baseline Health Measures
Mean (SD) SF36 Physical Health Component Summary Score	44.0 (8.8)
Mean (SD) SF36 Physical Mental Health Component Summary Score	52.7 (7.6)