Plasma KL-6 as a Potential Biomarker for Bronchopulmonary Dysplasia in Preterm Infants

Table 3

OR and 95% CI of analyzed prognostic factors for severe/moderate BPD based on KL-6/7d.

Independent variables	Comparison	Crude		Multivariate
		OR (95% CI)		OR (95% CI)
KL-6/7d (U/ml)	≥247.5/<247.5	4.59	(1.83–11.53)	4.98	(1.54–16.08)
PDA, lung hemorrhage	Yes/No	8.79	(1.86–41.57)	6.39	(0.87–46.74)
Mechanical ventilation (d)	≥20/<20	14.18	(5.27–38.19)	10.38	(3.57–30.14)
GA (weeks)	≤26.5/>26.5	5.22	(2.17–12.54)
Weight (g)	≤855/>855	4.71	(1.98–11.20)
Antenatal steroids	Yes/No	0.34	(0.12–0.97)
Sex	Female/Male	0.81	(0.36–1.81)
C-section	Yes/No	1.19	(0.49–2.88)
Complicated pregnancy	Yes/No	0.76	(0.19–3.04)
Apgar score <3 at 1 min	Yes/No	1.39	(0.58–3.34)

PDA, persistent ductus arteriosus; GA, gestational age.