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Mass screening for colorectal cancer in asymptomatic population
| Authors | Region | Age(yrs) | Population | Cancer | Dukers(%)A/B | Detection rate |
| Li et al | North | > 35 | 102800 | 25 | 52.0 | 24/105 |
| Zhen et al | East | > 35 | 62667 | 16 | 57.2 | 25.5/105 |
| Zhou et al | Mid-south | > 45 | 24677 | 9 | 55.6 | 36.5/105 |
