. Author manuscript; available in PMC: 2013 May 20.

Published in final edited form as: Psychol Med. 2011 Jul 7;42(1):111–123. doi: 10.1017/S0033291711001127

Table A5.

Hierarchical linear modelling of the effect of parental schizophrenia on offspring school performance in paternal and maternal half-sibling datasets.

Model 1. Paternal half-sibling comparison^a
Effect	Estimate	Standard Error	P value
Intercept	−1.93	0.013	<.0001
Exposure
within extended family	0.01	0.058	0.833
between extended family	−0.13	0.072	0.073
Education
within extended family	0.13	0.004	<.0001
between extended family	0.29	0.003	<.0001
Gender
Male	−0.36	0.006	<.0001
Female	0
Model 2. Maternal half-sibling comparison^b

Intercept	−1.88	0.013	<.0001
Exposure
within extended family	0.06	0.055	0.268
between extended family	−0.05	0.074	0.509
Education
within extended family	0.10	0.005	<.0001
between extended family	0.26	0.002	<.0001
Gender
Male	−0.35	0.005	<.0001
Female	0

Note:

Based on the sample including 98,166 offspring.

Based on the sample including 105,340 offspring.