T test and χ2 analyses of differences between obese and non-obese patients revealed several findings. For example, obese patients, in comparison to their non-obese peers, presented with a higher CD41lymphocyte count, t(157)= −2.9, p=.005) and were more likely to be the recipients of protease-inhibitor-based HAART (χ2=4.9, p=.0005). They were also more likely to meet DSM-IV criteria for alcohol (χ2=5.0, p=.03) and stimulant, that is, nicotine or cocaine (χ2=3.8, p=.05), dependence over their lifetime. The groups did not differ significantly in demographic or other psychiatric characteristics, use of psychoactive medications, or IQ.
