Table 3.

Correlation and linear regression analysis for parameters significantly associated with modified lung ultrasound scores

	Univariate analysis		Multivariate analysis
	p	r	p	β
Age (y)	<0.001	0.591	0.032	0.275 (0.114–0.674)
D-Dimer (ng/mL)	0.044	0.305	0.318	0.132 (0.098–0.451)
NT-proBNP (pg/mL)	0.005	0.415	0.012	0.315 (0.154–0.685)
hs-cTnI (ng/L)	0.022	0.344	0.184	0.158 (0.084–0.254)
PaO2/FiO2 (mm Hg)	<0.001	– 0.697	0.001	– 0.520 (–0.354 to –0.760)

hs-cTnI = high-sensitivity cardiac troponin I; NT-proBNP = N-terminal probrain natriuretic peptide; PaO₂/FiO₂ = partial pressure of arterial oxygen/fractional inspired oxygen ratio

$R_{\text{Adjusted}}^2=0.496$ in multivariate analysis.