Periodontal Disease, Inflammatory Cytokines, and PGE₂ in Pregnant Patients at Risk of Preterm Delivery: A Pilot Study

Table 1

Oral clinical characteristics by group.

	GROUP		p-value
	Risk	No risk
Biofilm	62	45.8	0.519
# Teeth	28	27.9	0.249
# Teeth with periodontitis	2.5	2.0	0.642
# Teeth with gingivitis	21.8	17.4	0.050