The effect of a daily application of a 0.05% chlorhexidine oral rinse solution on the incidence of aspiration pneumonia in nursing home residents: a multicenter study

Table 4 Results of Cox regression analysis for group and FOIS-level of the risk of the incidence of pneumonia and Cox’s multivariate proportional hazards regression model of possible risk factors for pneumonia after correction for group and FOIS-level presented as hazard ratio (HR), 95% confidence interval (95% CI) and P-value

	HR	95% CI	P-value
Group (Intervention / Control)	0.800^a	[0.368–1.737]	0.572
FOIS-level	0.804^a	[0.656 – 0.986]	0.036
Age	0.990	[0.943–1.039]	0.684
Gender	1.017	[0.469–2.205]	0.965
CDS-score	0.976	[0.948–1.006]	0.118
Number of diseases	1.046	[0.873–1.253]	0.628
Number of used medication	1.087	[0.977–1.210]	0.127
Oral status (edentulous/dentate)	1.526	[0.702–3.319]	0.286
Number of teeth	1.002	[0.923–1.089]	0.956
Dental implants (yes/no)	1.104	[0.247–4.941]	0.897
Removable denture (yes/no)	1.057	[0.236–4.725]	0.942

^aHR-ranges for Group from 0.664 to 0.939 and HR-ranges for FOIS-level from 0.738 to 0.920 in the nine different Cox’s multivariate proportional hazards regression models with possible risk factors

ISSN: 1471-2318