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. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Am J Psychiatry. 2013 Dec 1;170(12):10.1176/appi.ajp.2013.13020234. doi: 10.1176/appi.ajp.2013.13020234

Figure 2.

Figure 2

Distribution of retinal venular caliber for the healthy, hypertension, pre-diabetes/diabetes, persistent tobacco dependence, persistent depression, and schizophrenia groups. Scores were adjusted for arteriolar caliber and sex and standardized (M=0.00, SD=1.00) on the population-representative cohort. The vertical line represents the mean for the healthy group. Both parametric and nonparametric statistical analyses showed that individuals diagnosed with schizophrenia had significantly wider venules – a finding that does not depend on extreme values.