The current study examines two contrasting models of the relationship betwe
en illness disclosure and mental health among an ethnically-diverse group o
f women with HIV/AIDS. In the first, and commonly accepted model, illness d
isclosure predicts enhanced mental health status. In the second or alternat
e model, based on the stigmatization that accompanies HIV/AIDS infection, i
llness disclosure predicts poorer mental health. We also explore an alterna
te interpretation for this second model, namely that the mental health stat
us of participants is predictive of their levels of disclosure. A total of
176 women from three major ethnic groups were interviewed and assessed duri
ng the baseline visit for a comprehensive longitudinal study. Results showe
d that these women constituted a highly-disclosed population; over one-thir
d of them had disclosed their HIV status to their entire social networks. C
ontrary to expectation, disclosure was unrelated to mental hearth among the
African-American (n = 72) and European-American (n = 47) women. Among the
Latina women (n = 57), however, greater disclosure was related to higher le
vels of depression, psychological distress, and reported pain. Regression a
nalyses controlling for age, education, and illness severity showed that di
sclosure makes a small but independent contribution to the prediction of me
ntal health status. Thus, among the Latinas, the data were consistent with
both the stigma model and the hypothesis that greater distress predicts wid
er disclosure. General patterns of disclosure are described and possible ex
planations for the inconsistent relationships found between disclosure and
mental health among the three ethnic groups are considered. Copyright (C) 2
000 John Wiley & Sons, Ltd.