Cancer statistics

The following statistics provide the prevalence of certain (self-reported) cancer types at baseline and the 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 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