Baseline characteristics of the Dutch PJS cohort
| Total | 144 |
| Gender | |
| Male | 70 (49%) |
| Female | 74 (51%) |
| Families | 61 |
| Family history | |
| Familial PJS | 109 (76%) |
| Sporadic | 24 (17%) |
| Family history unknown | 11 (7%) |
| Fulfilling WHO criteria* | 142 (99%) |
| DNA mutation analysis | 92 (64%) |
| LKB1 mutation carrier | 82/92 (89%) |
| Deceased | 48 (33%) |
| Median age at death | 46 years (IQR 32–58 years) |
| Lost to follow-up | 6 (4%) |
| Cancer | 48 (33%) |
| Median age at diagnosis of first cancer | 46 years (IQR 35–55 years) |
| 2 primary cancers | 8 |
*Two patients not fulfilling the WHO criteria carry a proven LKB1 germline mutation.
PJS, Peutz-Jeghers syndrome.