Table 3. Correlation between question length and answer length.
| Website | Pearson product moment correlation coefficient | 95% Confidence Interval |
| AskTheDoctor | 0.17 | 0.151–0.199 |
| BeOK | 0.19 | 0.187–0.193 |
| WebMD | 0.25 | 0.229–0.272 |
| NetDoctor | 0.29 | 0.273–0.321 |
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