Table 1 Demographical information of 37 CE patients and 37 healthy donors (HD) from Ningxia Hui Autonomous Region, northwest China
| Â | CE (n/%) | HD (n/%) |
|---|---|---|
Age, years (mean ± SD) | 50.9 ± 13.2 | 44.2 ± 14 |
 < 30 | 1 (2.7) | 8 (21.6) |
 31–40 | 7 (18.9) | 9 (24.3) |
 41–50 | 12 (32.4) | 7 (18.9) |
 51–60 | 8 (21.6) | 7 (18.9) |
 61–70 | 4 (10.9) | 6 (16.3) |
 > 70 | 5 (13.5) | 0 (0) |
Gender | Â | Â |
 Female | 24 (64.9) | 21 (56.8) |
 Male | 13 (35.1) | 16 (43.2) |
Hospital stay, days (mean ± SD) | 14.4 ± 4.2 | – |