Table 6.

Values of κj (κ for comparison) for study groups 1 and 2 for the periods 1978–80 and 1990–5

	Group 1	Group 2*
κj 1978–80	0.661	0,601
Variance	2.75×10−4	3×10−4
κj 1990–5	0.661	0.646
Variance	5.85×10−5	1×10−4

*Significant difference for values in a Z table score.

Group 1, comparison of the basic cause of death based on the necropsy request and that obtained after macroscopic examination; group 2, comparison of the clinical diagnosis and the final one, which includes complementary investigations, such as microscopy.