Table 1.

Socio-demographic characteristics and periodontal condition according to the presence of placental infection (PI) and adverse pregnancy outcomes (APO).

		Control	Pg + APO+	Pg + APO-	UGM + APO+	PI‐ APO+
		n = 17	n = 5	n = 4	n = 5	n = 9
Age mean ± SD		21.29 ± 3.1	24.60 ± 4.6	19.75 ± 1.7	22.20 ± 3	19.33 ± 1.2
Civil status (F%)
Single		5 (29.4)	0	2 (50)	1 (20)	2 (22.2)
Married		1 (5.9)	0	0	0	1 (11.1)
Civil union		11 (64.7)	5 (100)	2 (50)	4 (80)	6 (66.7)
Education (F%)
Elementary		0	0	0	0	2 (22.2)
High school		15 (88.2)	4 (80)	4 (100)	5 (100)	6 (66.7)
Technical		2 (11.8)	1 (20.0)	0	0	1 (11.1)
Periodontitis n (%)
Yes **		0 (0.0)	3 (60.0)	3 (75.0)	2 (40.0)	0 (0.0)
Clinical signs of placental infection (F%)
Yes		0 (0.0)	2 (40.0)	0 (0.0)	0 (0.0)	0 (0.0)

^**p < 0.05 statistically significant difference among groups by Chi square test. Clinical signs of infection included uterine hypersensitivity, fever, maternal tachycardia, fetal tachycardia, and fetid flow.

APO, adverse pregnancy outcome; UGM, urogenital microorganisms; SD, standard deviation; IQR, Interquartile range; Pg+ APO+, P. gingivalis (+) adverse pregnancy outcome (+); Pg+ APO–, P. gingivalis (+) adverse pregnancy outcome –; UGM+ APO+, urogenital microorganisms (+) adverse pregnancy outcome +; PI– APO+, Placental infection (−) adverse pregnancy outcome (+); Control, adverse pregnancy outcome (−) without placental infection.