Association between living alone and all-cause mortality of young and middle-aged patients with acute myocardial infarction: analysis of the China Acute Myocardial Infarction (CAMI) registry

Table 2 Crude and adjusted OR/HR for living status

Treatments	Total (n = 8307)	Live alone (n = 192)	Not living alone (n = 8115)	Unadjusted OR/HR (95% CI)	P Value	Adjusted OR/HR (95% CI)^a	P Value
In hospital mortality	116/8307 (1.4%)	2/192 (1.0%)	114/8115 (1.4%)	0.739 (0.181,3.013)	0.674	0.535 (0.070,4.060)	0.545
2-year all-cause mortality	309/8008 (3.9%)	13/181 (7.2%)	296/7827 (3.8%)	1.878 (1.078,3.272)	0.026	2.171 (1.210,3.895)	0.009
MACCEs	559/8306 (6.7%)	23/192 (12.0%)	536/8114 (6.6%)	1.918 (1.251,2.939)	0.003	2.169 (1.395,3.370)	0.001

^aMultilevel logistic regression model adjusted for demography variables (age, sex, and type of AMI), socioeconomic variables (medical insurance, education level), cardiovascular risk factors (body mass index, smoking, diabetes, hypertension, and prior myocardial infarction). Multilevel Cox regression model adjusted for demography variables (age, sex, and type of AMI), socioeconomic variables (medical insurance, education level), cardiovascular risk factors (body mass index, smoking, diabetes, hypertension, and prior myocardial infarction), reperfusion therapy (timely reperfusion, untimely reperfusion, and no reperfusion), and medical therapy at discharge (DAPT at discharge, ACEI/ARB at discharge, β-Blockers at discharge, and statins at discharge)
Missing qualitative variables were imputed by the highest frequency count, and missing quantitative variables were imputed by the mean value
CI Confidential interval, MACCEs Major adverse cardiac and cerebrovascular events, OR Odd ratio, HR Hazard ratio

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