Table 2.

Confusion matrices showing the accuracy of CHAID-regression tree model to (A) training data (post-FMT day 7 composition), (B) validation data (using 10 samples withheld from the training data) and (C) test data (post-FMT day 8–20 composition)

From/to	Response	Recurrence	Total	% Correct
A
Response	44	0	44	100
Recurrence	0	10	10	100
Total	44	10	54	100
B
Response	6	0	6	100
Recurrence	3	1	4	25.0
Total	9	1	10	70.0
C
Response	55	2	57	96.5
Recurrence	0	10	10	100
Total	55	12	67	97.0