Table 1. . Demographic data (n = 120).

Adolescent, parent and family characteristics	Mean or n	(SD) or %
Age at time of initial evaluation (min–max: 11.8–18.6 years)	15.6	(1.5)
Sex: females	96	80%
Ethnicity: Caucasian	107	89%
Grade in school	9.6	(1.6)
Pain duration in months (min–max: 3–148 months)	25.2	(26.2)
BMI percentile (n = 115) – <5th percentile – 5–85th percentile – ≥85th percentile	63.2 2 79 34	(27%) 2% 69% 30%
Parent participant: mother	107	89%
Number of office visits for pain in past year (n = 105; min–max: 0–100 visits)	14.9	(17.6)
Number of doctors seen for pain relief	Mode = 4; 15% of subjects
Missed days in the last 4 weeks of school (n = 116)	2.6	(2.4)
Family SES – Hollingshead scale (n = 113; min–max: 25–66)	49.7	(10.1)
Patient pain diagnostic category: – Diffuse musculoskeletal pain – CRPS – type 1 – Localized musculoskeletal pain	53 31 36	44% 26% 30%

CRPS: Complex regional pain syndrome; max: Maximum; min: Minimum; n: Number; SD: Standard deviation; SES: Socioeconomic status.