Oral cleaning habits and the copy number of periodontal bacteria in pregnant women and its correlation with birth outcomes: an epidemiological study in Mibilizi, Rwanda

Table 3 Correlation between the copy number of each bacterium and birth outcomes by multivariate analysis

Bacterial species	Variables	Estimate	Std. Error	t value	p value
Total Bacteria	Intercept	0.0514	0.0881	0.583	0.5609
	Age of the mother	0.0619	0.0887	0.698	0.4865
	Birth weight	−0.3278	0.1089	−3.012	0.0032**
	Birth length	0.2268	0.1024	2.215	0.0286*
	Gestational age	0.1047	0.1199	0.873	0.3844
	Sex of the newborn	0.0933	0.0886	1.054	0.2942
P. gingivalis	Intercept	−0.0596	0.0602	−0.991	0.3237
	Age of the mother	0.1059	0.0606	1.747	0.0831
	Birth weight	−0.1051	0.0744	−1.412	0.1604
	Birth length	0.1037	0.0700	1.482	0.1409
	Gestational age	0.0122	0.0819	0.149	0.8816
	Sex of the newborn	0.1356	0.0605	2.241	0.0268*
T. forsythia	Intercept	−0.0235	0.0727	−0.324	0.7467
	Age of the mother	0.1832	0.0732	2.502	0.0136*
	Birth weight	−0.2096	0.0898	−2.333	0.0212*
	Birth length	0.1901	0.0845	2.250	0.0262*
	Gestational age	−0.0426	0.0989	−0.430	0.6679
	Sex of the newborn	0.1384	0.0731	1.893	0.0606
T. denticola	Intercept	0.0225	0.0822	0.274	0.7848
	Age of the mother	0.0774	0.0828	0.934	0.3522
	Birth weight	−0.2248	0.1016	−2.212	0.0288*
	Birth length	0.2862	0.0956	2.994	0.0033**
	Gestational age	−0.2143	0.1119	−1.914	0.0579
	Sex of the newborn	0.2404	0.0827	2.908	0.0043**
P. intermedia	Intercept	0.0252	0.0950	0.265	0.7910
	Age of the mother	−0.0576	0.0957	−0.602	0.5480
	Birth weight	−0.0802	0.1174	−0.683	0.4960
	Birth length	0.0071	0.1104	0.065	0.9480
	Gestational age	0.0412	0.1293	0.319	0.7510
	Sex of the newborn	0.1293	0.0955	1.354	0.1780

A generalized linear model for multivariate analysis was performed using neonatal data to analyze the relationship between the copy number of each bacterium and birth outcomes. * indicate p value < 0.05 and ** indicate p value < 0.01

ISSN: 1472-6831