Although not a primary aim of the investigation, exploratory analyses were completed that evaluated the frequency of marijuana use among current users in regard to risk for panic attacks and panic disorder. These tests were completed given some empirical evidence that more severe problems related to such use may demonstrate a stronger association with panic psychopathology (Zvolensky et al., 2006). To the extent that greater rates of marijuana use are related to more severe marijuana use problems, then, frequency of marijuana use could potentially be related to panic psychopathology among current users of the drug. The current data, although limited in statistical power, did not fully support such a perspective, as frequency of marijuana use was not predictive of panic psychopathology. Thus, considering past work (Zvolensky et al., 2008), severity of marijuana use problem(s) may perhaps be a better index of putative panic vulnerability than frequency of marijuana use.
