Table 5.

Serum zonulin levels (ng/mL) in patients and control groups.

Study	Serum Zonulin Levels (ng/mL) in Patients and Control Groups
	Patient Group			Control Group
	n	Mean Zonulin	S.D.	n	Mean Zonulin	SD	p-Value
Özyurt et al., ADHD (n)/(ng/mL), mean ± SD	40	105.36	98.38	41	63.34	73.4	0.031
Esnafoglu et al., ASD (n)/(ng/mL), mean ± SD	32	122.3	98.46	33	41.89	45.83	<0.001
Józefczuk et al., ASD (n)/(ng/mL), mean ± SD	75	17.2	15.7	46	15.3	5.9	>0.05
Işık et al., OCD (n)/(ng/mL), mean ± SD	24	98.93	83.06	24	103.7	73.53	0.834