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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: J Pain. 2014 Jan 23;15(5):527–534. doi: 10.1016/j.jpain.2014.01.493

Table 1.

Participant demographic characteristics.

VARIABLE RANGE MEAN (SD) FREQUENCY
Gender
Male 27%
Female 73%
Ethnicity
Caucasian 90%
African American 3%
Asian 2%
Hispanic 3.5%
Parent marital status
Married 78%
Single 6%
Divorced/separated 14%
Spouse deceased 2%
Duration of pain (months) 1 – 194 34 (37)