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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Biol Psychiatry. 2010 May 21;68(1):78–85. doi: 10.1016/j.biopsych.2010.03.028

Table 1.

Demographics of unaffected siblings of schizophrenia patients and healthy controls

Unaffected siblings Healthy controls Statistics
Age 36.0 (10.3) 42.7 (9.0) t39 = 2.18, p < .01
Education (yrs) 15.9 (1.6) 13.2 (1.3) t38=−5.64, p <.001
Gender (female/male) 11/10 5/14
Racial breakdown
Caucasian 9 16
Latino 3 1
Asian 1 0
African-American 5 2
Other/unknown 1 2
†

Values are given as mean (standard deviation).