Table 3 Predictors for undergoing primary percutaneous coronary intervention by multivariable analysis (n = 13 217)*.

Predictors	Odds ratio (95% CI for OR)	P‐value
Age (for each additional year)	0.98 (0.97 to 0.98)	<0.001
Female gender	0.70 (0.64 to 0.76)	<0.001
Killip class II	0.43 (0.37 to 0.46)	<0.001
Killip class III	0.28 (0.22 to 0.35)	<0.001
Killip class IV	1.05 (0.82 to 1.34)	0.698
Delay >6 hours	1.20 (1.11 to 1.29)	<0.001
History of CAD	0.68 (0.63 to 0.74)	<0.001
History of dyslipidaemia	1.20 (1.12 to 1.30)	<0.001
ST‐segment elevation	1.77 (1.64 to 1.91)	<0.001
LBBB	0.58 (0.47 to 0.71)	<0.001

CAD, coronary artery disease; LBBB, left bundle branch block.

*7073 Patients could not be included in this analysis because they had missing values for some of the adjustment variables.