Impact of body mass index on long-term outcomes in patients undergoing percutaneous coronary intervention stratified by diabetes mellitus: a retrospective cohort study

Table 4 Outcomes analyses according to BMI and DM status

Outcomes	DM Category	BMI Category	Event Rate n (%)	Unadjusted Model			Adjusted Model			P-interaction
Outcomes	DM Category	BMI Category	Event Rate n (%)	HR	95% CI	P value	HR	95% CI	P value	P-interaction
MACCE	Non-DM	Normal-weight	272 (45.4%)	1(Reference)						0.158
	Non-DM	Overweight and Obesity	351 (49.0%)	1.12	0.96, 1.32	0.15	1.10	0.94, 1.30	0.2
	DM	Normal-weight	138 (56.5%)	1(Reference)
	DM	Overweight and Obesity	193 (53.7%)	0.86	0.69, 1.07	0.2	0.93	0.74, 1.18	0.6
All-cause death	Non-DM	Normal-weight	71 (11.8%)	1(Reference)						0.833
	Non-DM	Overweight and Obesity	45 (6.2%)	0.54	0.37, 0.78	0.001	0.71	0.48, 1.04	0.078
	DM	Normal-weight	49 (20.0%)	1(Reference)
	DM	Overweight and Obesity	46 (12.8%)	0.57	0.38, 0.86	0.007	0.75	0.49, 1.16	0.2
MI	Non-DM	Normal-weight	18 (3.0%)	1(Reference)						0.126
	Non-DM	Overweight and Obesity	26 (3.6%)	1.19	0.65, 2.16	0.6	1.16	0.62, 2.16	0.6
	DM	Normal-weight	6 (2.4%)	1(Reference)
	DM	Overweight and Obesity	4 (1.1%)	0.42	0.12, 1.48	0.2	0.37	0.10, 1.38	0.14
Stroke	Non-DM	Normal-weight	14 (2.3%)	1(Reference)						0.361
	Non-DM	Overweight and Obesity	19 (2.6%)	1.09	0.55, 2.18	0.8	1.31	0.63, 2.70	0.5
	DM	Normal-weight	12 (4.9%)	1(Reference)
	DM	Overweight and Obesity	13 (3.6%)	0.65	0.30, 1.43	0.3	1.14	0.95, 1.36	0.20
URR	Non-DM	Normal-weight	212 (35.3%)	1(Reference)						0.545
	Non-DM	Overweight and Obesity	304 (42.4%)	1.23	1.03, 1.46	0.022	1.06	0.81, 1.40	0.70
	DM	Normal-weight	90 (36.8%)	1(Reference)
	DM	Overweight and Obesity	151 (42.0%)	1.06	0.81, 1.37	0.7	1.11	0.84, 1.48	0.5

Covariates for the adjusted model: age, sex, smoking, previous myocardial infarction, hypertension, cerebrovascular disease, peripheral vascular disease, renal insufficiency, albumin, cardiac ejection fraction, multi-vessel coronary disease, and primary percutaneous coronary intervention
BMI body mass index, DM diabetes mellitus, CI confidence interval, HR hazard ratio, MACCE major adverse cardiac and cerebrovascular events, MI myocardial infarction, URR unplanned repeat revascularization
Bold indicates P < 0.05

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