Risk factors of early childhood caries (ECC) among children in Beijing - a prospective cohort study

BMC Oral Health

Table 4 Caries status at baseline and 1-year follow-up for children with different PMS scores

PMS score	N	Prevalence at baseline (%)	dmfs at baseline (mean ± SD)	With new caries (%) (Δdmfs> 0)	△dmfs (mean ± SD)
0/1	320	27.8	1.41 ± 3.53	45.0	1.51 ± 2.73
2/3	387	66.4	7.04 ± 9.66	66.1	3.59 ± 4.97
		P < 0.001**	P < 0.001**	P < 0.001**	P < 0.001**

PMS plaque mutans streptococci at baseline
dmfs decayed, missing, or filled surfaces, △dmfs newly decayed, missing, or filled surfaces at the 1-year follow-up, PMS plaque mutans streptococci
**Significant at P < 0.001

ISSN: 1472-6831