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Table 1 Group demographics.

From: Brain size and brain/intracranial volume ratio in major mental illness

Characteristic Bipolar group Schizoaffective group Schizophrenic group Controls
Number of subjects 51 (24 males) 26 (18) males 58 (40 males) 89 (42 males)
Age (std dev) 40.65 (10.85) 36.37 (11.78) 39.22 (7.95) 34.34 (8.79)
Education years 14.45 (2.03) 13.30 (2.42) 12.94 (2.55) 15.26 (1.91)
Handedness (Annette score) 0.85 (0.14) 0.85 (0.27) 0.71 (0.49) 0.79 (0.36)
Number medicated 45 24 54 0