Antibiotic resistance in Swiss nursing homes: analysis of National Surveillance Data over an 11-year period between 2007 and 2017

Table 2 Patient characteristics and results of univariable and multivariable logistic regression using generalized estimating equation for risk factors for methicillin-resistance in patients with Staphylococcus aureus isolates from Swiss nursing homes between 2007 and 2017

	MSSA	MRSA		Univariable		Multivariable
	n = 926	n = 556	Row %^a	OR (95% CI)	P value	OR (95% CI)	P value
Sex
Female	542	298	35.5	ref.		ref.
Male	384	258	40.2	1.4 (0.9–2.2)	0.11	1.6 (1.0–2.5)	0.06
Age in years
< 70	133	57	30.0	ref.		ref.
70–85	563	361	39.1	1.5 (1.1–2.2)	0.02	1.3 (0.9–1.9)	0.13
> 85	230	138	37.5	1.5 (1.0–2.2)	0.04	1.3 (0.8–1.9)	0.27
Region
French/Italian speaking	697	498	41.7	ref.		ref.
German speaking	229	58	20.2	0.1 (0.1–0.2)	< 0.0001	0.1 (0.1–0.2)	< 0.0001
Sampling site
Urogenital	259	174	40.2	ref.		ref.
Skin	492	294	37.4	0.9 (0.7–1.2)	0.44	0.9 (0.7–1.1)	0.20
Other	175	88	33.5	0.8 (0.5–1.1)	0.09	0.7 (0.5–1.0)	0.06

Abbreviations: MSSA Methicillin-susceptible Staphylococcus aureus, MRSA Methicillin-resistant Staphylococcus aureus, OR Odds Ratio, CI Confidence Interval
Significant P values are in bold and non-significant ones (P ≥ 0.05) are not in bold
^aESC-R/(ESC-S + ESC-R)

ISSN: 2047-2994