Table 1.

Main characteristics of patients treated with FMT.

Patient code	Age	Gender	Total number of relapse	Risk factor for relapse	Previous antibiotics	Fresh or frozen stools	Full colonoscopy	Efficacy	Relapse post-FMT
1c	70	F	4	4	V, M	Fresh	YES	YES	YESd
2	46	M	4	0	V, M	Fresh	YES	YES	NO
3	87	F	3	3	V, F	Fresh	YES	YES	NO
4	69	F	3	2	V, M	Fresh	YES	YES	NO
5	52	M	2	2	V, F	Fresh	YES	YES	NO
6	77	F	5	2	V, F	Fresh	YES	YES	NO
7c	70	F	5	0	V, M	Fresh	YESa	NO
8	74	F	4	3	V, F	Fresh	YES	YES	YESd
9	51	F	4	2	V, M	Fresh	YES	YES	NO
10	81	F	3	3	V, M, F	Fresh	YES	YES	NO
11	22	F	3	1	V	Fresh	YES	YES	NO
12	86	F	3	3	V	Frozen	YES	YES	YESd
13	73	F	3	3	V	Frozen	YES	YES	NO
14	77	F	2	2	V	Frozen	YES	YES	NO
15	86	F	2	3	V, F	Frozen	YES	YES	NO
16	71	F	3	2	V, M	Frozen	YESa	NO	NO
17	63	F	2	2	V	Frozen	YES	YES	NO
18	79	F	3	2	V, M, F	Frozen	YES	YES	NO
19	78	F	3	2	V, M	Frozen	NO	NO	−a
20	52	F	2	2	V	Frozen	YES	YES	NO

F, Fidaxomicin; FMT, faecal microbiota transplantation; M, Metronidazole; V, Vancomycin.

^aPatients expelled the infused faecal material in the first hours following the procedure.

^bPatient without subsequent follow up, due to inefficacy of FMT.

^c1 and 7 were the same patient, treated with FMT twice.

^dDifferent relative abundance of g_Bacteroides in donor faeces: donor of P(1):51.51%; donor of P(8): 56.61%; donor of P(12):50.82% versus a mean value of 39.43%.