Table 3.

The correlation between the lung-to-body weight ratio [%] and selected FTIR biomarkers associated using the Spearman’s rank correlation coefficient (R) and probability (P).

Spectral Parameter	Lungs Mass [% of Body Weight]
	Spearman R	Spearman P
PARENCHYMA
Secondary structure of proteins	0.82	0.001
Fibrillar proteins	0.81	0.001
Carbohydrates moiety	0.81	0.001
Hydroxyproline residues	0.84	0.0006
ATELECTASIS
Total proteins	0.84	0.0006
Secondary structure of proteins	0.88	0.0002
FIBROUS/MUSCULAR
Total proteins	0.87	0.0002
Fibrillar proteins	0.82	0.001
Hydroxyproline residues	0.82	0.0009