Table 10. Effects of the number of anti-epileptic drugs on efficacy of the KD.

Therapeutic time (month)	Kinds of AEDs (n)	Valid cases (%)	Invalid cases (%)	P value
3	≤3	37 (80.43)	9 (19.57)	0.817
	>3	44 (78.57)	12 (21.43)
6	≤3	34 (75.56)	11 (24.44)	0.361
	>3	44 (83.02)	9 (16.98)
9	≤3	34 (80.95)	8 (19.05)	0.982
	>3	43 (81.13)	10 (18.87)
12	≤3	31 (79.49)	8 (20.51)	0.731
	>3	42 (82.35)	9 (17.65)
18	≤3	27 (72.97)	10 (27.03)	0.441
	>3	40 (80.00)	10 (20.00)
24	≤3	26 (74.29)	9 (25.71)	0.389
	>3	37 (82.22)	8 (17.78)