Table 3.

Effect of serum folate level on ABC, SRS, CARS, and communication warning behavior score of CNBS-R2016 scores in the ASD children at different age groups.

Item	≤3 y		3~4 y		4~5 y		>5 y
	rs	P	rs	P	rs	P	rs	P
ABC(n1 = 253, n2 = 378, n3 = 299, n4 = 285)
Sensory	−0.078	0.234	0.085	0.118	−0.004	0.944	−0.085	0.172
Relating	0.01	0.881	0.105	0.054	0.111	0.076	−0.103	0.098
Body and object use	−0.067	0.309	−0.013	0.812	−0.031	0.617	−0.056	0.366
Language	−0.046	0.487	0.028	0.602	0.114	0.067	0.000	0.994
Social self-help	0.072	0.273	0.092	0.089	−0.001	0.998	−0.071	0.253
ABC total score	−0.002	0.980	0.082	0.113	0.056	0.338	−0.079	0.183
SRS(n1 = 218, n2 = 313, n3 = 292, n4 = 285)
Social awareness	−0.079	0.247	−0.011	0.841	0.046	0.437	−0.053	0.376
Social cognition	−0.061	0.373	0.001	0.986	0.112	0.058	0.036	0.548
Social communication	−0.027	0.694	−0.026	0.646	0.105	0.074	0.000	0.997
Social motivation	−0.009	0.9	−0.018	0.751	0.066	0.266	−0.056	0.349
Autism behavior mannerisms	−0.06	0.376	−0.065	0.253	0.066	0.265	−0.031	0.608
SRS total score	−0.056	0.41	−0.037	0.516	0.101	0.087	−0.011	0.854
CARS(n1 = 238, n2 = 337, n3 = 266, n4 = 264)	−0.059	0.369	0.07	0.201	0.031	0.62	0.004	0.951
Communication warning behavior (n1 = 177, n2 = 302, n3 = 238, n4 = 217)	−0.193	0.011*	0.012	0.841	0.012	0.857	−0.012	0.858

Data was presented as correlation coefficients of spearman. Spearman rank correlation was used in the analysis.

^*P < 0.05.

y, years; n1, the sample of ASD children aged 3 years and under; n2, the sample of ASD children aged 3 to 4 years.

n3, the sample of ASD children aged 4 to 5 years; n4, the sample of ASD children aged 5 years after.