Research Article
Prior Appendectomy and the Onset and Course of Crohn’s Disease in Chinese Patients
Table 1
The demographic characteristics of CD patients versus controls.
| | CD () | Controls () | |
| | Age of CD diagnosis and control (median and range, years) | 29 (6-79) | 29 (6-78) | 0.940 | | Male sex (%) | 393 (63.70%) | 393 (63.70%) | 1.00 | | Han nationality (%) | 602 (97.57%) | 595 (96.43%) | 0.243 | | Smokers (%) | 219 (35.49%) | 178 (28.85%) | 0.012 | | Alcohol drinking (%) | 103 (16.69%) | 115 (18.64%) | 0.370 | | NSAIDs use (%) | 28 (4.54%) | 22 (3.57%) | 0.386 |
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