Table 3 Essential characteristics of tumor-free people
Characteristics | N(%) |
|---|---|
238 cases | Â |
 Age | |
  Median | 59 |
  Range | 44–78 |
 Sex | |
  Male | 204(85.7) |
  Female | 34(14.3) |
818 cases | |
 Age | |
  Median | 53 |
  Range | 44–78 |
 Sex | |
  Male | 430(52.6) |
  Female | 388(47.4) |