Table 6.

Multivariate analysis. Logistic regression between bleeding on probing and background variables

In brackets is reported the reference of each background variable
Number of observation = 1474	χ2(6) = 24.90 p < 0.01 log likelihood = -931.25

Bleeding on probing	OR (SE)	p >|z|	95% CI
Waist circumference (reduced)	2.2 (0.2)	< 0.01	1.8/2.5
BMI (underweight)	0.9 (0.1)	0.07	0.7/1.0
O2 saturation (≤ 90%)	1.8 (0.2)	0.01	1.6/2.4
Oral Hygiene Frequency (seldom)	1.1 (0.1)	0.27	0.1/1.2
Sugared foods/drinks (seldom)	1.2 (0.1)	0.09	0.1/1.5
Self-reported chewing problem (yes)	0.8 (0.1)	0.08	0.7/1.0

The bold values represent the statistically significant results