Table 4 Models of the relationship between probability of intervention and gender adjusted for possible confounders

Year	Pathology	Starting model	OR (95% CI)	p Value	Final model	OR (95% CI)	p Value
1999–2002	All diagnoses		2.11 (2.04 to 2.19)	<0.001
	Myocardial infarction	hrtfail+diab+clsage	1.33 (1.24 to 1.43)	<0.001	hrtfail+diab+clsage	1.33 (1.24 to 1.43)	<0.001
	Angina		1.61 (1.48 to 1.75)	<0.001		1.61 (1.48 to 1.75)	<0.001
	Chronic ischaemia		1.48 (1.39 to 1.58)	<0.001		1.48 (1.39 to 1.58)	<0.001
	Chest pain		4.30 (1.65 to 11.23)	0.003	–	3.95 (1.52 to 10.24)	0.002
2000 and 2002	All diagnoses		2.18 (2.06 to 2.29)	<0.001
	Myocardial infarction	hrtfail+diab+clsage+sevill	1.43 (1.30 to 1.58)	<0.001	clsage+sevill	1.43 (1.30 to 1.58)	<0.001
	Myocardial infarction	hrtfail+diab+clsage+riskmort	1.44 (1.31 to 1.59)	<0.001	clsage+riskmort	1.45 (1.31 to 1.59)	<0.001
	Angina	hrtfail+diab+clsage+sevill	1.55 (1.38 to 1.12)	<0.001	clsage+sevill+hrtfail	1.56 (1.39 to 1.75)	<0.001
	Angina	hrtfail+diab+clsage+riskmort	1.61 (1.44 to 1.80)	<0.001	hrtfail+diab+clsage+riskmort	1.61 (1.44 to 1.80)	<0.001
	Chronic ischaemia	hrtfail+diab+clsage+sevill	1.53 (1.39 to 1.69)	<0.001	clsage+hrtfail+sevill	1.54 (1.40 to 1.69)	<0.001
	Chronic ischaemia	hrtfail+diab+clsage+riskmort	1.52 (1.38 to 1.67)	<0.001	clsage+hrtfail+riskmort	1.53 (1.39 to 1.68)	<0.001
	Chest pain	hrtfail+diab+clsage+sevill	3.69 (1.24 to 10.69)	0.019	–	3.52 (1.20 to 10.30)	0.022
	Chest pain	hrtfail+diab+clsage+riskmort	3.88 (1.31 to 14.47)	0.014	–	3.52 (1.20 to 10.30)	0.022

hrtfail, congestive heart failure; diab, diabetes mellitus; clsage: age group; sevill, severity of illness; riskmort, risk of mortality.