Characteristics of the cohort with Peutz–Jeghers syndrome (PJS)
| N=133 | |
| Gender | |
| Male | 64 (48%) |
| Female | 69 (52%) |
| Age at the end of follow-up | |
| Median age (range) patients alive (n=89) | 34 (4–75) years |
| Median age (range) patients deceased (n=42) | 45 (3–76) years |
| Patients lost to follow-up (n=2) | NA |
| Family history | |
| Familial PJS | 100 (75%) |
| Sporadic PJS | 23 (17%) |
| Family history unknown | 10 (8%) |
| DNA mutation analysis | 80 (60%) |
| STK11 mutation carrier | 77 / 80 (96%) |
| Cancer | 42 (32%) |