Structural integrity of grey and white matter in schizophrenic patients by diffusion tensor imaging

Egyptian Journal of Radiology and Nuclear Medicine

Table 1 Comparison of sociodemographic characteristics of the studied patients (n:50)

	Groups				Tests of significance
	Control (n = 25)		Patients (n = 25)		Test statistic	p value
Age (years)
Median [IQR]	31.6 ± 7.1		30.5 ± 8.8		t = 0.475	0.637
Min–Max	20.0–45.0		18.0–48.0		t = 0.475	0.637
Gender
Male	14	56.0%	18	72.0%	X²_ChS = 1.389	0.239
Female	11	44.0%	7	28.0%	X²_ChS = 1.389	0.239
Occupational
No	14	56.0%	13	52.0%	X²_ChS = 0.081	0.777
Yes	11	44.0%	12	48.0%	X²_ChS = 0.081	0.777
Educational
No	12	48.0%	14	56.0%	X²_ChS = 0.321	0.571
Yes	13	52.0%	11	44.0%	X²_ChS = 0.321	0.571
Marital status
Single	10	40.0%	11	44.0%	X²_ChS = 0.114	0.944
Married	8	32.0%	7	28.0%
Divorced	7	28.0%	7	28.0%
Family history of psychiatric disease
No	21	84.0%	18	72.0%	X²_ChS = 1.049	0.306
Yes	4	16.0%	7	28.0%	X²_ChS = 1.049	0.306
Smoker
No	12	48.0%	12	48.0%	X²_ChS = 0.000	1.000
Yes	13	52.0%	13	52.0%	X²_ChS = 0.000	1.000
Addiction
No	21	84.0%	17	68.0%	X²_ChS = 1.754	0.185
Yes	4	16.0%	8	32.0%	X²_ChS = 1.754	0.185

Max maximum, Min minimum, n number, IQR interquartile range, t Independent samples T test, X²_ChS Pearson’s Chi-square test, X²_FFH Fisher–Freeman–Halton exact test, Significance level is adopted at p ≤ 0.05