A prediction study of warfarin individual stable dose after mechanical heart valve replacement: adaptive neural-fuzzy inference system prediction

Table 2 Comparison of predicted value and actual value of warfarin in the validation groups

Model	Predicted value (mg/d)	Actual value (mg/d)	P	correlation
Model	X±S	X±S	P	coefficient
ANFIS_iv	2.86±0.31	2.84±0.87	0.221	0.313
ANFIS_stra-iv	2.75±0.49	2.84±0.87	0.000^*	0.309
ANFIS_ev	2.77±0.25	2.54±0.81	0.000^*	0.066
ANFIS_stra-ev	2.61±0.38	2.54±0.81	0.001^*	0.101

The subscript “stra” in the model symbols stratified training group, “iv” symbols internal validation group and “ev” symbols external validation group. P-values have been obtained by Paired T test. P<0.05

ISSN: 1471-2482