Association between psychiatric disorders and iron deficiency anemia among children and adolescents: a nationwide population-based study

Table 2 Characteristics of patients with iron deficiency anemia (IDA) and control subjects

Characteristics	IDA	Control	p-value
No.	2957	11828
Age (years)	10.59 ± 6.02	10.59 ± 6.02
Sex, N (%)
Male	1060 (35.8)	4240 (35.8)
Female	1897 (64.2)	7588 (64.2)
Associated diseases, N (%)
Schizophrenia	8 (0.3)	14 (0.1)	0.063
Unipolar depressive disorder	48 (1.6)	66 (0.6)	<0.001
Bipolar disorder	13 (0.4)	7 (0.1)	<0.001
OCD	4 (0.1)	8 (0.1)	0.274
Anxiety disorder	45 (1.5)	80 (0.7)	<0.001
ASD	24 (0.8)	32 (0.3)	<0.001
ADHD	84 (2.8)	207 (1.8)	<0.001
Tic disorder	23 (0.8)	56 (0.5)	0.044
Delayed development	154 (5.2)	278 (2.4)	<0.001
Mental retardation	75 (2.5)	114 (1.0)	<0.001

IDA iron deficiency anemia, OCD obsessive-compulsive disorder, ASD autistic spectrum disorder, ADHD attention-deficit and hyperactivity disorder.

ISSN: 1471-244X