Document Classification

Section Type: RESULTS

Text: After 16 weeks of therapy, the freedom-from-failure rates for ethosuximide and valproic acid were similar (53 % and 58 %, respectively ; odds ratio with valproic acid vs. ethosuximide, 1. 26 ; 95 % confidence interval [CI], 0. 80 to 1. 98 ; P = 0. 35) and were higher than the rate for lamotrigine (29 % ; odds ratio with ethosuximide vs. lamotrigine, 2. 66 ; 95 % CI, 1. 65 to 4. 28 ; odds ratio with valproic acid vs. lamotrigine, 3. 34 ; 95 % CI, 2. 06 to 5. 42 ; P < 0. 001 for both comparisons).