Table 3. Proportion of resistant strains, cumulative incidence risk ratio (RR) (95% confidence interval).

Pathogen	Antibiotics tested	% resistant TH	% resistant PH	RR (TH versus PH)	95% CI
E.coli	Aminopenicillin	71.8%	61.4%	1.17	1.11–1.23
	Ciprofloxacin	37.5%	22.7%	1.65	1.47–1.85
	Ceftriaxone	21.3%	13.6%	1.56	1.33–1.84
	Gentamicin	12.1%	6.8%	1.78	1.40–2.24
	Carbapenem	0.3%	0.4%	0.77	0.23–2.62
Klebsiella sp.	Ciprofloxacin	26.0%	17.1%	1.53	1.11–2.11
	Ceftriaxone	21.0%	12.8%	1.64	1.13–2.38
	Gentamicin	10.5%	6.3%	3.68	2.22–6.10
	Carbapenem	3.5%	1.6%	2.26	0.74–6.84
Enterococcus faecium	Vancomycin	10.1%	2.6%	3.91	1.21–12.60
	Linezolid	5.0%	0.9%	6.12	0.82–46.01
Enterococcus faecalis	Vancomycin	2.3%	0.5%	5.07	0.63–40.91
Staphylococcus aureus	Cefoxitin*	8.5%	6.8%	1.25	0.87–1.79
Pseudomonas sp.	Ciprofloxacin	38.1%	15.1%	2.53	1.66–3.84
	Ceftazidime	26.7%	14.2%	1.88	1.97–2.96
	Gentamicin	26.1%	5.4%	4.80	2.36–9.74
	Carbapenem	38.9%	12.8%	3.03	1.93–4.75
	Piperacillin/tazobactam	19.9%	6.8%	2.93	1.52–5.64

TH = tertiary hospital; PH = peripheral hospitals;

* Cefoxitin as marker for oxacillin/methicillin resistance