Table 3.

An analysis of inter-reliability of the policy database searches using Cohen’s Kappa

		Denmark	Sweden	Finland
Investigator 1	Eligible	33	25	13
	Not eligible	404	1007	406
Investigator 2	Eligible	38	27	20
	Not eligible	399	1005	399
Total included		25	12	6
Total excluded		412	1020	413
Cohen’s Kappa		0.81	0.51	0.39