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Table 2 Means and standard deviations (SD) for intracranial volume (ICV), total brain volume (TBV), ventricular volume (VV), ventricle/brain ratio (VBR), and brain volume/intracranial volume ratio (TBV/ICV).

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

Bipolar Subjects ICV TBV VV VBR TBV/ICV
Male (n = 24) Mean ± SD 1482.563 ± 138.828 1329.843 ± 129.378 31.51 ± 13.9 0.243 ± 0.0102 0.897 ± 0.030
Female (n = 27) Mean ± SD 1302.536 ± 112.330 1166.931 ± 110.786 21.77 ± 6.08 0.0192 ± 0.0056 0.895 ± 0.019
Total (n = 51) Mean ± SD 1387.255 ± 153.827 1243.596 ± 144.313 26.64 ± 10.05 0.0217 ± 0.0079 0.896 ± 0.025
Control Subjects ICV TBV VV VBR TBV/ICV
Male (n = 42) Mean ± SD 1489.755 ± 114.978 1354.338 ± 111.556 25.18 ± 9.90 0.0190 ± 0.0075 0.908 ± 0.018
Female (n = 47) Mean ± SD 1345.118 ± 116.599 1215.653 ± 105.602 20.99 ± 6.25 0.0176 ± 0.0048 0.903 ± 0.021
Total (n = 89) Mean ± SD 1413.374 ± 136.157 1281.100 ± 128.356 23.08 ± 8.07 0.0182 ± 0.0061 0.906 ± 0.020
Schizoaffective Subjects ICV TBV VV VBR TBV/ICV
Male (n = 18) Mean ± SD 1435.895 ± 118.635 1298.308 ± 101.764 26.33 ± 10.96 0.0208 ± 0.0084 0.904 ± 0.016
Female (n = 8) Mean ± SD 1328.658 ± 122.739 1196.083 ± 107.790 24.71 ± 4.40 0.0213 ± 0.0046 0.900 ± 0.015
Total (n = 26) Mean ± SD 1402.899 ± 127.814 1266.854 ± 112.296 25.52 ± 7.68 0.0210 ± 0.0065 0.903 ± 0.015
Schizophrenic Subjects ICV TBV VV VBR TBV/ICV
Male (n = 40) Mean ± SD 1464.978 ± 126.294 1315.718 ± 118.423 29.15 ± 0.36 0.0227 ±0.073 0.898 ± 0.018
Female (n = 18) Mean ± SD 1263.270 ± 123.169 1136.627 ± 133.719 24.24 ± 8.66 0.0217 ± 0.0068 0.898 ± 0.027
Total (n = 58) Mean ± SD 1402.379 ± 158.788 1260.138 ± 148.032 26.69 ± 9.01 0.0222 ± 0.0071 0.898 ± 0.021
  1. Volumes in ml.