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. Author manuscript; available in PMC: 2014 Dec 15.
Published in final edited form as: Psychiatry Res. 2013 Jul 26;210(2):10.1016/j.psychres.2013.06.030. doi: 10.1016/j.psychres.2013.06.030

Table 3. Frequency of Psychosis measured on a Likert Scale, mean Wender Utah score and mean daily methamphetamine (MA) dose across the range of frequency of psychosis.

Frequency of Psychosis in Likert Units n Wender-Utah (WURS) Mean daily MA dose
1 23 50.9 0.88
2 27 58.5 1.16
3 38 61.9 1.43
4 33 73.9 1.40
5 24 78.5 1.64