The present study did demonstrate associations between obesity and a selected set of medical, psychological, and neurophysiological variables. Significant positive associations with CD4+cell count (Batterham et al., 2002; Dworkin & Williamson, 2003; Lyles et al., 1999; Malvy et al., 2001; Wanke et al., 2003; Welch & Morse, 2002) and protease inhibitor use (Dever et al., 2000; Jacobson et al., 2006; Jerico et al., 2005; McDermott et al., 2001; Mulligan et al., 2005; Rimland et al., 2006; Silva et al., 1998; Tsiodras et al., 2000; Walli et al., 1998) were expected from findings previously reported by other investigators and were replicated presently. The negative association between stimulant dependence symptoms and obesity was also expected (Forrester et al., 2005; Saarni et al., 2004). Because the analysis controlled for the potential confounding effects of substance abuse-related variability in disease severity (Bagby et al., 2006; Molina et al., 2006; Poonia et al., 2006; Potula et al., 2006) and antiviral medication use (Hinkin, Castellon, Hardy, Granholm, & Siegle, 1999; Mohammed et al., 2004; Sharpe et al., 2004), the association between stimulant use and obesity can
