Table 3.

The comparison of SSF-MCDI and MUSS of children before and after intervention.

Groups	N	SSF-MCDI	MUSS
Before intervention	420	79.1% ± 10.2%	81.2% ± 6.8%
After intervention	420	89.1% ± 11.2%	91.2% ± 8.9%
t	—	12.21	8.92
P value	—	0.002	0.001