Table 3.

Adjusted odds ratios (OR) and 95% confidence intervals (95% CI) for periodontitis.

Dependent Variable	Independent Variable		OR	95% CI	p-Value 1
Periodontitis	Age		1.11	1.09–1.14	<0.001
	Gender	Female	Ref
		Male	5.11	2.81–9.30	<0.001
	Daily flossing	Yes	Ref
		No	0.99	0.57–1.76	0.990
	Regular dental checkup	Yes	Ref
		No	1.17	0.69–1.99	0.562
	BMI (kg/m2)	<25	Ref
		≥25	2.23	1.42–3.51	< 0.001
	Sleeping duration (daily)	≥6 h	Ref
		<6 h	0.98	0.58–1.67	0.938
	Current smoker	No	Ref
		Yes	2.08	1.35–3.22	< 0.001
	Daily alcohol drinking	No	Ref
		Yes	1.24	0.73–2.11	0.424
	Monthly overtime work	<40 h	Ref
		≥40 h	1.07	0.68–1.71	0.765
	Worker type	Office worker	Ref
		Skilled worker	1.31	0.89–1.95	0.175
	Low stress		Ref
	High stress-High coping		0.30	0.14–0.66	0.003
	High stress-Low coping		2.79	1.05–7.43	0.039

BMI, body mass index. CI, confidence interval. OR, odds ratio. ¹ Multiple logistic regression model adjusted for age, gender, daily flossing, regular dental checkups, BMI, sleeping duration (daily), smoking status (current smoker), daily alcohol drinking, monthly overtime work, worker type, and stress-coping style.