Categories | Control | Case | Number | p value | |||
No Drinking coffee | 53 (67.9) 25 (32.1) | 37 (47.4) 41 (52.6) | 90 (57.7) 66 (42.3) | 0.015 | |||
| 78 (100) | 78 (100) | 156 (100) |
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