Body mass index and outcomes of patients with cardiogenic shock: A systematic review and meta-analysis

Table 1 Details of included studies

Ref.	Location	Type	Primary diagnosis	Groups	Definition as per BMI (kg/m2)	Sample size	Age (yr)	Male gender (%)	Smokers (%)	DM (%)	HTN (%)	CKD (%)	DL (%)	PCI (%)	CABG (%)	MCS (%)	Follow-up
Sreenivasan et al[16], 2021	United States	R	AMI or HF	Severe obesity	> 40	8782	59.9	52.3	NR	64.4	72.2	41.3	NR	53.2	25.8	100	30-d
				Moderate obesity	35-39.9	6862	60.9	68.9		66	77.6	38.4		47.1	31	100
				Mild obesity	30-34.9	10880	62.9	71.2		59.1	75.4	33.1		54.4	32.2	100
				Normal	20-29.9	7111	65.9	71.6		45.4	65.5	39.8		47	27.5	100
				Underweight	< 19.9	1920	65.6	67.9		30.9	54	30.9		37.3	14.7	100
Patlolla et al[17], 2021	United States	R	AMI	Overweight/Obese	> 24.9	46675	63.8	60.3	NR	NR	NR	NR	NR	53.6	24.9	49	In-hospital
				Normal	19.9-24.9	290333	69	64.5						53.6	16.3	45.7
				Underweight	< 19.9	2356	73.7	49.4						39.8	12.2	27.8
Hermansen et al[18], 2021	Denmark	R	AMI	Moderate/Severe	≥ 35	42	63	69	68	43	75	NR	55	100	0	17	30-d
				Obesity	30-34.9	131	64	80	82	21	54		34	100	0	15
				Mild obesity	25-29.9	391	65.2	82	79	21	55		33	100	0	21
				Overweight	< 25	453	66.1	75	74	13	42		29	100	0	16
Hashmi et al[19], 2018	Pakistan	P	AMI	Obese	≥ 30	137	NR	NR	NR	NR	NR	NR	NR	NR	NR	NR	In-hospital
				Normal	< 30	214
Chatterjee et al[20], 2017	United States	R	AMI	Obese	≥ 30	25835	63.1	58.2	34.3	45.2	68.8	23.5	54.8	50.9	19.6	NR	In-hospital
				Normal	< 30	265059	69.4	62.3	24	24.4	50.6	18.9	33.8	47.9	13.6

AMI: Acute myocardial infarction; HF: Heart failure; BMI: Body mass index; DM: Diabetes mellitus; HTN: Hypertension; CKD: Chronic kidney disease; DL: Dyslipidemia; PCI: Percutaneous coronary intervention; CABG: Coronary artery bypass grafting; MCS: Mechanical circulatory support; NR: Not reported; R: Retrospective; P: Prospective.