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Cancer statistics

The following statistics provide the prevalence of certain (self-reported) cancers 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
Skin cancer	2593	288	199	404
Breast cancer	1344	168	136	171
Endometrial cancer	674	29	13	21
Ovarian cancer	98	9	8	4
Vagina and vulva cancer	11	2	0	0
Lung cancer	70	26	13	13
Cancer of the head/neck (excl. eye and salivary glands	93	5	7	6
Eye cancer	11	2	0	3
Salivary gland cancer	24	0	0	1
Central nervous system cancer	75	9	7	18
Prostate cancer	320	79	57	100
Penile cancer	5	0	0	2
Testicular cancer	206	10	9	5
Urinary tract and bladder cancer	118	20	18	15
Bowel cancer	384	56	45	67
Esophageal cancer	20	6	11	8
Stomach cancer	15	3	1	3
Pancreatic cancer	10	6	7	2
Gallbladder cancer	2	1	2	1
Liver cancer	9	1	0	0
Thyroid cancer	108	6	7	6
Bone and soft tissue cancer	90	8	7	14
Kidney cancer	89	14	12	17
Plasma cancer	19	9	3	6
Leukemia	94	35	4	12
Lymph node cancer	225	28	14	15
Cancer, but location unknown	92	18	8	3
Pre-stage cancer	314	48	28	7
Certainly no cancer (only baseline)	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	1155 (16,9%)	30046 (21,6%)
Non-smokers	5690 (83,1%)	109325 (78.4%)
Total	6845	139371