Table 1.

Recruitment, inclusion and exclusion.

Recruitment	Total	Positive response	Exclusion after positive reaction	Exclusion after screening	Inclusion	Never started
Local newspaper:	unknown	80	38	4	38	6
UMC group	172	32	8	8	16	3
Local municipal registers	16090	541	249	28	264	26
total	16262	653	295	40	318	35