Table 5:

Univariable and multivariable logistic regression models for evaluating the associated factors for the composite event

	Univariable analysis			Multivariable analysis
Variable	Odds ratio	95% CI	P-value	Odds ratio	95% CI	P-value
non-BPA group (vs BPA group)	10.83	1.30, 90.14	0.028	7.52	0.86, 65.49	0.068
Age (years)	0.98	0.93, 1.03	0.386
Female	1.03	0.29, 3.60	0.965
NYHA/WHO functional class III, IV (vs II)	1.90	0.46, 7.85	0.377
mPAP (mmHg)	1.14	1.00, 1.29	0.047	1.10	0.95, 1.26	0.191
Current smoker	0.49	0.05, 4.44	0.523
Former smoker	0.65	0.16, 2.72	0.556
Thrombotic predisposition	1.23	0.28, 5.44	0.787
Hypertension	1.59	0.47, 5.33	0.454
Dyslipidaemia	0.75	0.14, 4.03	0.737
History of symptomatic cerebral infarction	5.73	0.85, 38.61	0.073
Without oral PAH-targeted medical treatment	0.49	0.05, 4.44	0.523
Surgical classification III, IV (vs I, II)	3.73	0.66, 21.09	0.137
Concomitant surgery	2.16	0.58, 8.05	0.251

Concomitant surgery comprises patients with tricuspid annuloplasty, the maze procedure, coronary artery bypass grafting, mitral valve repair, surgical aortic valve replacement or ascending aortic replacement.

BPA: balloon pulmonary angioplasty; CI: confidence interval; mPAP: mean pulmonary arterial pressure; NYHA/WHO: New York Heart Association/World Health Organization; PAH: pulmonary arterial hypertension.