The EMPCAN study: protocol of a population-based cohort study on the evolution of the socio-economic position of workers with cancer

Table 1 The list of demographic, cancer-related and work-related variables selected for the EMPCAN study, Belgium 2015–2020

Group of variables	Variables	Levels^a	Primary source	Data provider
Demographic	Age (16–64)	11	NOSS^d	CBSS^h
	Gender	2	NR^e	CBSS
	Region	5	NR	CBSS
	Civil status	12	NR	CBSS
Cancer-related	Cancer site	7	BCR^f	BCR
	Stage	5	BCR	BCR
	Month of incidence^b	96	BCR	BCR
	Treatment	4	IMA^g	BCR
	Quarter of death	2	NR	CBSS
Work-related	Occupational class	5	NOSS	CBSS
	Code NACE2^c Code NACE3	84 352	NOSS	CBSS
	Salary class	8	NOSS	CBSS
	Work schedule	6	NOSS	CBSS
Personal-factors (not used)	Value of work
	Self-assessed health status
	Self-assessed work ability
	Perceived quality of the relationship with colleagues
	Perceived quality of the relationship with manager/head

^athe maximum number of values that the variable can take, as well as the primary source of information and the EMPCAN provider
^bDate of the first microscopic (cytological or histological) confirmation of the malignancy
^cStatistical Classification of Economic Activities in the EC. Accessible via: http://ec.europa.eu/eurostat/web/nace-rev2/overview (access on the 4th June 2018)
^dNational Office for Social Security
^eNational population registry
^fBelgian Cancer Registry
^gInter-Mutuality Agency
^hCrossroad Bank for Social Security

ISSN: 2049-3258