Table 4. Mean scores by sex and standard deviations based on the K-DST score.

Category	Sex	Number	Mean±SD	P value
Gross motor	Male	127	15.38±6.36	0.572
	Female	82	14.87±6.43
Fine motor	Male	127	15.64±5.90	0.001
	Female	82	17.99±4.57
Cognition	Male	127	14.58±6.33	<0.001
	Female	82	18.17±4.70
Communication	Male	127	11.39±7.33	<0.001
	Female	82	16.32±5.68
Social interaction	Male	127	12.71±5.65	<0.001
	Female	82	17.46±4.76
Self-control	Male	88	14.55±5.37	0.008
	Female	45	17.13±4.95

K-DST, Korean Developmental Screening Test; SD, standard deviation.