Epidemiological Study of the Incidence of Cancers Eligible for Proton or Carbon Ions Therapy: Methodology and Results of Recruitment Estimation

Table 3

Results, EpiHadron study: organisation, patient, and tumour characteristics.

Categories	Population sizes (𝑛)	%
Organisations
Investigating establishments	27	—
RCP groups: multidisciplinary consultation meeting	52	—
Cancer coordination centres	12	—
RCP coordinating physicians	50	—
Clinical research associate	13	—
Patient characteristics
Patient age (mean)	43 years [2–89]	—
Man	32	60.4
Woman	21	39.6
Initial care	29	54.7
Recurrent cancer	24	45.3
Tumour characteristics
Mean tumour size (largest circumference)	69 mm [19–250]	—
Metastases present	11	20.8
Lymph nodes present	10	18.9
Identified Cases
In total (𝑁)	53	—
By age group
[2–18] years	21	39.6
[18–45] years	0	0
[45–65] years	18	34
[65–69] years	0	0
[69–89] years	14	26.4
By RCP type
Head and neck H and N	4	7.5
Digestive	12	22.6
Sarcoma and soft tissue	2	3.8
Central nervous system CNS	2	3.8
Paediatrics	21	39.6
Dermatology	4	7.5
General practice	6	11.3
Oncology	1	1.9
Other	1	1.9