Endobronchial ultrasound-guided transbronchial needle aspiration in intrathoracic lymphadenopathy with extrathoracic malignancy

Table 3 Risk factors of being malignant for intrathoracic lymphadenopathy

Covariates	Univariate analysis		Multivariate analysis
	OR (95%CI)	P	OR (95%CI)	P
Sex
Female	1
Male	1.720 (0.727-4.071)	0.217
Age (yr)
≤ 60	1
> 60	1.647 (0.696-3.900)	0.257
Size of sampled lymph node	1.113 (1.036-1.196)	0.003	1.200 (1.024-1.407)	0.024
Site of lymphadenopathy
Mediastinal and hilar	1
Mediastinal only	1.244 (0.528-2.932)	0.617
Hilar only	6.788 (0.819-56.257)	0.076
Status of synchronous lung lesion
Without	1		1
With	8.082 (2.292-28.501)	0.001	19.449 (1.875-201.753)	0.013
Status of synchronous ETM
Synchronous	1
Metachronous	1.057 (0.629-1.776)	0.834
SUVmax of sampled lymph node	0.987 (0.887-1.098)	0.806

ETM: Extrathoracic malignancy; SUV_max: Maximum standardized uptake.