COX regression univariate analysis.

Table 5: COX regression univariate analysis.

Variables	p	Exp(B)	95% CI Exp(B)
			Lower	Upper
Age	0.874	1.005	0.945	1.068
Gender	0.358	0.611	0.214	1.745
Charlson Index	0.907	1.022	0.707	1.479
Smoking	0.831	0.946	0.569	1.573
Enphysema	0.677	1.369	0.312	6.011
Reticular Score	0.135	1.067	0.98	1.161
Ground-Glass Score	0.562	0.843	0.474	1.501
Honeycomb Score	0.01	1.103	1.024	1.188
Distortion Score	0.053	1.159	0.998	1.346
Total Score	0.012	1.054	1.012	1.097
SCORE ≥ 20	0.019	3.525	1.234	10.07
FVC	0.016	0.973	0.952	0.995
DLCO	0.005	0.945	0.908	0.983
KCO	0.003	0.96	0.962	0.988
TLC	0.028	0.968	0.941	0.996
CPI	0.002	1.064	1.023	1.105
6MWT	0.694	1.001	0.995	1.007
Initial SaO₂	0.391	0.91	0.734	1.128
Final SaO₂	0.204	0.944	0.864	1.032
Desaturation	0.505	1.036	0.934	1.148
PaO₂	0.533	0.989	0.954	1.025
AaPO₂	0.565	1.011	0.975	1.048
FVC (-10%)	0.407	1.624	0.516	5.11
DLCO (-15%)	0.346	1.551	0.623	3.861
DLCO < 40%	0.005	0.501	0.308	0.816
FVC < 50%	0.512	4.686	0.46	4.737
Total Score lower level	0.208	1.048	0.974	1.127
Honeycomb Score lower level	0.015	1.149	1.027	1.285

Abbreviations: p: Level of Significance; CI: Confidence Interval; Exp(B): Exponentiation of the B coefficient; FVC Forced Vital Capacity; TLC: Total Lung Capacity; DLCO: Diffusing Capacity of Carbon Monoxide; KCO: Carbon Monoxide Transfer Coefficient; CPI: Composite Physiologic Index; SaO₂: Oxygen Saturation; 6MWT: Six-Minute Walking Test; PaO₂: Arterial Oxygen Pressure; AaPO₂: Alveolar-Arterial Oxygen Tension Difference.