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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Child Psychol Psychiatry. 2014 Jan 21;55(7):819–827. doi: 10.1111/jcpp.12201

Table 4.

Chi-square results of different models examining first-born child disorder stratified by presence/absence of maternal ADHD.

First Born Children Randomly Selected Children
Chi2 df p-value Chi2 df p-value
Model 1a 142.43 3 1.0*10−29 145.14 3 1.0*10−30
Model 2b 140.19 2 1.0*10−30 143.27 2 1.0*10−31
Model 3c 141.95 2 1.0*10−31 135.29 2 1.0*10−29
Model 4d 133.18 1 1.0*10−30 132.44 1 1.0*10−29
Model 5e 132.06 1 1.0*10−30 113.89 1 1.0*10−25
Model 6f 7.43 1 0.007 5.50 1 0.019
Model 7g 10.77 1 0.001 17.41 1 1.0*10−4

Note: Individual Chi2 models fit for the following individual models:

a

Model 1: 2×4 Mother ADHD (yes/no) × child no disorder, ASD, ADHD, ADHD+ASD

b

Model 2: 2×3 Mother ADHD (yes/no) × child no disorder, ADHD, ASD, comorbid as ADHD

c

Model 3: 2×3 Mother ADHD (yes/no) × child no disorder, ADHD, ASD, comorbid as ASD

d

Model 4: 2×2 Mother ADHD (yes/no) × child ADHD (yes/no), (comorbid=ADHD)

e

Model 5: 2×2 Mother ADHD (yes/no) × child ADHD (yes/no), (comorbid=not ADHD)

f

Model 6: 2×2 Mother ADHD (yes/no) × child ASD (yes/no), (comorbid= not ASD)

g

Model 7: 2×2 Mother ADHD (yes/no) × child ASD (yes/no), (comorbid=ASD)