Changes in neurotransmitter levels, brain structural characteristics, and their correlation with PANSS scores in patients with first-episode schizophrenia

Table 1 Basic data of patients in the two groups

Group	n	Age (yr)	BMI (kg/m2)	Gender (%)		Degree of education		Marital status
				Male	Female	Junior high school and below	Senior high school or above	Married	Unmarried or widowed
Case group	97	39.60 ± 8.20	23.76 ± 2.21	41 (42.27)	56 (57.73)	62 (63.92)	35 (36.08)	81 (83.51)	16 (16.49)
Control group	100	37.40 ± 9.40	23.41 ± 2.40	50 (50.00)	50 (50.00)	55 (55.00)	45 (45.00)	77 (77.00)	23 (23.00)
t/χ2		1.748	1.064	1.184		1.623		1.312
P		0.082	0.289	0.276		0.203		0.252

BMI: Body mass index.