======Cancer statistics======

The following statistics provide the [[https://en.wikipedia.org/wiki/Prevalence|prevalence]] of certain (self-reported) [[cancer]] types at baseline and the [[https://en.wikipedia.org/wiki/Incidence_(epidemiology)|incidence]] (i.e. self-reported newly diagnosed cancers since the previous questionnaire) at three follow-up questionnaires ([[1B]], [[1C]] and [[2A]]). 


| **Type**                                        | **At Baseline**  | **New cases**             |
|                                                 | [[1A]]           | [[1B]] - [[1C]] - [[2A]]  |
| Cancer general                                  | 7000             | 2400                      |
| skin cancer                                     | 2500             | 890                       |
| breast cancer                                   | 1300             | 480                       |
| endometrial cancer                              | 670              | 65                        |
| ovarian cancer                                  | 95               | 27                        |
| vaginal and vulvar cancer                       | 10               | <10                       |
| lung cancer                                     | 65               | 60                        |
| head/neck cancer excl. eye and salivary glands  | 95               | 15                        |
| eye cancer                                      | 10               | <10                       |
| salivary gland cancer                           | 20               | <10                       |
| central nervous system cancer                   | 80               | 40                        |
| prostate cancer                                 | 320              | 245                       |
| penile cancer                                   | <10              | <10                       |
| testis cancer                                   | 200              | 20                        |
| urinary tract and bladder cancer                | 110              | 55                        |
| bowel cancer                                    | 340              | 170                       |
| oesophageal cancer                              | 20               | 25                        |
| stomach cancer                                  | 15               | 10                        |
| pancreas cancer                                 | 10               | 15                        |
| gallbladder cancer                              | <10              | <10                       |
| other digestive tract cancer                    | <10              | <10                       |
| liver cancer                                    | 15               | 10                        |
| thyroid cancer                                  | 100              | 20                        |
| bone and soft tissue cancer                     | 90               | 35                        |
| plasma cell cancer                              | 20               | 15                        |
| other haematological cancer                     | <10              | <10                       |
| kidney cancer                                   | 85               | 45                        |
| leukemia                                        | 100              | 55                        |
| lymphoma                                        | 225              | 60                        |
| prestage cancer                                 | 320              | 85                        |
| unknown if it is cancer                         | 115              | <10                       |
| cancer, but location unknown                    | 90               | 30                        |
| certainly no cancer                             | 145526           |                           |

====Smoking amongst participant with cancer at baseline====
The following statistics show the number and percentage of participants that had cancer and smoked (current or in the past month) at [[1A|baseline]].


| ** Smoking frequency amongst cancer patients**  | **Participants with cancer**  | **Participants without cancer**  |
| **Smokers**                                     | ~1150 (17%)                   | ~30,000 (22%)                    |
| **Non-smokers**                                 | ~5700 (83%)                   | ~110.000 (78%)                   |
| **Total**                                       | ~6850                         | ~140,000                         |