Table 2 The efficiency of KD in patients with infantile spasms with prior use of different ASMs
|  | No ASMs | 1 drug | 2 drugs | 3 drugs | ≥ 4 drugs |
|---|---|---|---|---|---|
n(%) | 25 (5.2) | 55 (11.4) | 158 (32.8) | 157 (32.6) | 86 (17.9) |
1 month(a) | 14 (56.0) | 26 (47.3) | 68 (43.0) | 65 (41.4) | 33 (38.4) |
3 months(a) | 12 (48.0) | 23 (41.8) | 85 (53.8) | 89 (56.7) | 41 (47.7) |
6 months(a) | 10 (40.0) | 19 (34.5) | 65 (41.1) | 65 (41.4) | 27 (31.4) |
12 months(a) | 7 (28.0) | 12 (21.8) | 46 (29.1) | 43 (27.4) | 14 (16.3) |