Table 1.

Sample characteristics and descriptive data for main variables

Ethnicity, % white	83.9
Sex, % women	58.9
Age, y	66.3 ± 8.5
BMI, kg/m2	30.82 ± 6.31
WOMAC (disability)	43.19 ± 21.0
PROMIS-anxiety	42.6 ± 79.7
PROMIS-depression	37.0 ± 79.6
Catastrophizing (PCS)	14.4 ± 12.3
Average daily pain intensity (0–100)	39.1 ± 20.5
Average daily physical activity (0–100)	44.3 ± 21.3
Godin-Shepard Leisure-Time Physical Activity	26.3 ± 30.8
Six-minute walking test distance, feet	915.93± 266.53

Average daily pain intensity and physical activity are aggregated scores across the seven-day diary period, ±SD.

BMI = body mass index; GSLTPAQ = The Godin-Shephard Leisure-Time Physical Activity Questionnaire; PCS = pain catastrophizing scale; PROMIS = Patient Reported Outcomes Measurement Information System (reported as T-scores); WOMAC = Western Ontario & McMaster Universities Osteoarthritis Index.