Thailand, during September-December 2004.
Cronbach's alpha ranged from 0.61 to 0.81 across domains. Exploratory factor
analysis identified four major domains: physical, psychological, social and environmental
domains, corresponding to the four WHOQOL-BREF domains. The four domain scores correlated
positively with general health satisfaction and overall quality of life questions (all p < 0.01 except
general health & social domain p < 0.05), and correlated negatively with the frequency and
severity of HIV symptoms (all p < 0.01). The four domain scores discriminated between patients
with higher and lower frequency and severity of HIV symptoms (all p < 0.01)