Table 1. Characteristics of CPE isolates (deduplicated by species), Switzerland, 2013–2018 (n = 731).

	2013	2014	2015	2016	2017	2018	Total	Total (%)a
Clinical importance
Colonisation	23	22	59	73	63	85	325	44.5
Infection	12	11	28	31	26	65	173	23.7
NA	30	49	29	38	25	62	233	31.9
Sex
Female	20	29	36	54	51	74	264	36.1
Male	45	52	77	85	63	132	454	62.1
NA	0	1	3	3	0	6	13	1.8
Age group (years)
0–4	6	1	4	7	5	6	29	4
5–19	3	1	4	2	4	8	22	3
20–64	29	42	59	68	50	89	337	46.1
≥ 65	27	37	42	64	55	104	329	45
NA	0	1	7	1	0	5	14	1.9
Specimen type
Blood	3	2	3	3	3	5	19	2.6
Wound	1	4	7	14	6	11	43	5.9
Respiratory	4	2	10	12	4	8	40	5.5
Urine	10	26	26	29	24	42	157	21.5
Stool	22	25	44	73	51	71	286	39.1
NA	25	23	26	11	26	75	186	25.4

NA: not available.

^a Percentage from the total number of isolates (n = 731).