Morbid obesity impacts mortality among inpatients with type a aortic dissection: an analysis of the national inpatient sample

Table 2 The association between different obesity classes and in-hospital mortality, total cost estimated by adjusted model

Primary outcomes	Non-obese	Obesity		Morbid obesity
In-hospital mortality, n (%)	5398.9 (15.0)	543.4 (13.3)		334.7 (15.4)
	Ref	OR (95%CI)	P value	OR (95%CI)	P value
	Ref	1.02 (0.80,1.30)	0.880	1.39 (1.03,1.86)	0.030
Total cost, median [IQR]	68670.58 [47282.43, 105163.85]	67541.51 [47099.56, 102565.05]		75647.46 [51150.84, 120032.79]
	Ref	Estimate (95%CI)	P value	Estimate (95%CI)	P value
	Ref	− 0.02 (− 0.06,0.01)	0.146	0.08 (0.04,0.12)	< 0.001

Variables selected in the model for adjustment included age, sex, race, year of discharge, income level, insurance type, elective admission or not, hospital factors and clinical factors involving smoking, prior stroke, dyslipidaemia, coronary artery disease, long-term anticoagulants and antithrombotics and 28 individual ECI comorbidities
OR, odds ratio; CI, confidence interval

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