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. 2021 Jul 9;14:3271–3280. doi: 10.2147/IJGM.S319436

Table 4.

Correlation of Some PFT Measurements with Different Demographic and Clinical Characteristics

Variables FeNO HT WBCs Count Platelet Count ESR CRP D-Dimer Anti-Viral Therapy Steroid
TLC %PRED r 0.279 0.295 −0.151 −0.008 0.049 0.337 −0.025 0.218 −0.018
p 0.055 0.194 0.515 0.973 0.837 0.146 0.921 0.343 0.937
FVC %PRED r 0.096 0.083 −0.247 −0.125 0.030 0.136 −0.179 0.435 0.109
p 0.498 0.720 0.280 0.589 0.899 0.567 0.478 0.049 0.638
DLCO %PRED r 0.108 0.168 −0.097 −0.097 0.009 0.435 −0.410 −0.014 −0.178
p 0.468 0.492 0.692 0.692 0.972 0.071 0.115 0.954 0.465

Note: Data in bold indicates significant correlation (p< 0.05).

Abbreviations: r, Pearson’s correlation coefficient; FVC, forced vital capacity; TLC, total lung capacity; DLCO, diffusing capacity of the lung for carbon monoxide; CRP, C-reactive protein; ESR, Erythrocyte sedimentation rate; FeNO, fractional exhaled nitric oxide; HT, Hospitalization time; %PRED, percentage of predicted normal value.