Prevalence of attention-deficit/hyperactivity disorder (ADHD) symptoms in preschool children: discrepancy between parent and teacher evaluations

Table 5 Results of likelihood ratio test (outcome is the presence of ADHD symptoms)

Explanatory variables	Parameter estimate	Standard error	χ ²	P value
Gender (girl, 0; boy, 1)	1.59	0.13	194.5	<0.0001
Observer (teacher, 0; parent, 1)	3.24	0.31	111.1	<0.0001
School type (kindergarten, 0; nursery school, 1)	0.95	0.12	71.9	<0.0001
Age (preschool year)	−0.30	0.06	23.9	<0.0001
Interaction between gender and observer	−1.09	0.14	70.5	<0.0001
Interaction between school type and observer	−0.63	0.13	25.1	<0.0001
Interaction between age and observer	0.10	0.07	1.9	0.1726

ISSN: 1347-4715