Table 3.

Within-patient phenotypic and genotypic polymorphisms among 16 patients with prosthetic joint infection caused by Staphylococcus epidermidis with more than two isolates, as analysed using whole-genome sequencing

Patient ID	Type of implant	Classificationa	No. of specimens included	No. of Staphylococcus epidermidis isolates	No. of different antibiograms	Sequence type(s)	Polymicrobial	Additional species
2	Hip	Early	7	9	1	2	No
12	Hip	Early	3	3	2	2, 73	Yes	S. hominis
28	Hip	Early	2	2	2	2	No
46	Hip	Early	2	2	1	89	No
47	Hip	Delayed	2	2	1	2	Yes	Enterococcus faecalis: Escherichia coli
50	Hip	Delayed	2	2	2	215, 434	Yes	E. faecalis
56	Hip	Delayed	2	3	2	2	No
1	Hip	Late	4	8	5	59, 215	Yes	S. hominis
40	Hip	Late	4	4	2	215	Yes	S. haemolyticus
43	Knee	Early	5	5	2	2	No
54	Knee	Early	6	7	3	225, 434, 723, 962, 964	Yes	S. hominis
58	Knee	Early	3	3	3	2, 188	No
60	Knee	Early	2	2	2	5, 86	Yes	S. lugdunensis
42	Knee	Delayed	4	4	2	188	No
49	Knee	Late	7	7	3	965	No
37	Shoulder	Late	5	6	4	2, 152, 215, 961	No

^aEarly =  < 3 months, delayed = 3–12 months, late =  > 12 months