Table 4.
Effect of ONS implantation with trial period versus without trial period
| Responder | Non-responder | Total | Chi2 (1) | p | |
|---|---|---|---|---|---|
| Without trial period | 257 | 209 | 466 | 17.29 | < 0.0001 |
| With trial period | 138 | 204 | 342 | ||
| Total | 306 | 281 | 808 |
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