Copyright 1999 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.1999
Czobor and Volavka's comments contain 3 main points. First, they are concerned that we used a log-linear model to analyze differences in aggregate rates of violence and that we ignored within-subject variability. Second, they hypothesize that the observed downward trend in postdischarge violence rates is due to the "biased attrition" of a certain group of patients "with persistent, recidivistic violence." Finally, Czobor and Volavka are concerned that our treatment of "time at risk" as a covariate in attempting to explain the observed decline in violence violated an assumption of independence.
Steadman HJ, Robbins PC, Silver E, et al. Violence in the Mentally Ill: Questions Remain—Reply. Arch Gen Psychiatry. 1999;56(2):193–194. doi:
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