Assessing the association between periodontitis and premature birth: a case-control study

Table 3 Multivariate logistic regression analysis of premature birth with possible risk factors (Final model)

Variables	Categories	Odds Ratio	p-value	95% Confidence Interval
Periodontitis		6.360	< 0.001	3.94–10.27
Employment status	Farmer	1
	Employed	0.861	0.684	0.42–1.77
	Students	0.694	0.524	0.23–2.14
	Not employed	1.548	0.132	0.88–2.73
Tobacco use	Yes	3.394	0.165	0.60–19.07
Mother’s weight in Kgs	51–75	1
	30–50	3.207	0.001	1.64–6.28
	≥76	0.322	0.106	0.08–1.27
History of Malaria	Yes	1.521	0.106	0.91–2.53
History of Urinary Tract Infection	Yes	1.539	0.196	0.80–2.96
History of premature delivery	Yes	10.596	< 0.001	2.87–39.15
History of stress during pregnancy	Yes	0.809	0.758	0.21–3.11
History of Violence during pregnancy	Yes	5.382	0.009	1.51–19.15
Other causes of stress	Yes	1.652	0.457	0.44–6.20
Inter-conception period	> 24 months	1
Inter-conception period	12–24 Months	2.168	0.006	1.25–3.76

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