Table 1

Variations in ischaemic heart disease mortality between local areas in the region of Scania among individuals aged 50–64 years at baseline, as assessed with empty Cox multilevel models, 1996–2002

	Area variance	IHR	MHR	Intra-area correlation
IHR, interquartile hazard ratio; MHR, median hazard ratio; pop, population.
Whole region of Scania	0.22 (p<0.001)	2.91	1.57	0.12
First tertile of pop density	0.09 (p = 0.22)	1.98	1.33	0.05
Second tertile of pop density	0.14 (p = 0.10)	2.34	1.42	0.08
Third tertile of pop density	0.21 (p<0.001)	2.87	1.55	0.11