Table 7: VNS response difference between the two groups.

- - SBL
(n = 25)
Non-SBL
(n = 19)
*P-value Odds ratio (95% CI)
After 3 months Responder 6 (24%) 2 (10.5%) 0.332 2.333 (0.356–15.30)
Nonresponders 9 (36%) 7 (36.8%)
After 6 months Responder 9 (36%) 7 (36.8%) 0.619 1.071 (0.229–5.018)
Nonresponders 6 (24%) 5 (26.3%)
After 1 year Responder 12 (48%) 9 (47.4%) 0.597 0.889 (0.192–4.114)
Nonresponders 6 (24%) 4 (21.1%)
Current Responder 19 (76%) 14 (73.7%) 0.566 1.131 (0.287–4.464)
Nonresponders 6 (24%) 5 (26.3%)

*By the Fisher’s exact test