Table 1: Demographic and health-related characteristics of participants ( ).

N Mean (SD), range, or %

Age, years 40156.3 (10.7),
19–87
Gender
 Women34485.8
 Men5714.2
Race
 White25664.0
 Black/African American14135.3
 Other race30.8
Education level
 <High school61.5
 High school or GED4611.5
 Some college10526.3
 College graduate24360.8
Marital status
 Married or member of unmarried couple24360.6
 Divorced or separated7118.0
 Widowed369.0
 Never married5012.5
Body mass index, kg/m240133.0 (8.2),
15.8–60.7
Weight group
 Underweight10.3
 Normal weight5814.5
 Overweight11428.4
 Obese22856.9
Self-reported arthritis typea
 Osteoarthritis20250.4
 Rheumatoid arthritis8721.7
 Fibromyalgia7318.2
 Gout317.7
 Lupus133.2
 Sjogren’s disease92.2
 Psoriatic arthritis82.0
 Other112.8
 Don’t know6516.3
Arthritis medication usage
(current or past 7 days)
 Yes34185.0
 No6015.0
Self-reported health status
 Excellent123.0
 Very good10225.5
 Good 19949.8
 Fair7418.5
 Poor133.3

aPercentages for self-reported arthritis exceed 100% as participants could report >1 type of arthritis.