Table 4.

Multivariable logistic regression analysis to identify significant factors for poor dental health.

	<20 remaining teeth		Positive BOP		Having >30% of remaining teeth with a PD ≥ 4 mm
	RR [95% CI]	p Value	RR [95% CI]	p Value	RR [95% CI]	p Value
Age
≥75 versus <65 years	3.27 [0.84–13.3]	0.08	0.27 [0.03–1.59]	0.15	1.50 [0.37–6.01]	0.57
Versus 65–74 years	1.61 [0.51–5.25]	0.42	0.32 [0.04–1.71]	0.19	0.75 [0.21–2.61]	0.65
Smoking index (pack-years)
>60 versus 0	1.57 [0.39–6.40]	0.53	1.14 [0.28–5.24]	0.86	1.54 [0.40–5.92]	0.53
Versus 0–30	2.01 [0.59–6.95]	0.26	1.42 [0.33–6.62]	0.64	2.35 [0.64–8.72]	0.19
Versus 30–60	0.73 [0.22–2.29]	0.59	2.46 [0.59–11.4]	0.22	2.34 [0.70–8.03]	0.17
COPD, yes/no	5.48 [1.81–17.9]	0.0024	12.8 [2.64–97.9]	0.0009	4.82 [1.43–17.6]	0.011

BOP; bleeding on probing; PD: pocket depth; RR: relative risk; CI: confidence interval.