Physical Functioning, Perceived Disability, and Depressive Symptoms in Adults with Arthritis

Table 2

Descriptive statistics for independent and dependent study variables.

Independent variables	N	Mean (SD)
Grip strength (kg)	401	27.1 (10.2)
6-minute walk distance (m)	399	494.1 (91.2)
30-second chair stands (#)	401	10.0 (3.5)
Seated reach (cm)	399	21.7 (9.9)
Gait velocity (m/sec)	399	1.1 (0.2)
Balance^a (ratio of eyes open/eyes closed)	398	1.2 (0.3)
HAQ score (0–3)	401	0.6 (0.5)
Dependent variable	N	Median, Range
Depressive symptoms^a (0–30)	401	5, 0–28

HAQ: Health Assessment Questionnaire Disability Index.
^aLower score = more favorable.