Table 2.

A set of the laboratory blood features that were correlated with the severity of pulmonary fibrosis

Variable	R value	P value
Erythrocyte sedimentation rate	0.500	0.001*
Fibrinogen	0.383	0.005*
IgA Serum	0.379	0.006*
RDW	0.304	0.031*
Lactate dehydrogenase	0.290	0.040*
IgG serum	0.266	0.061
Uric acid	0.235	0.099
Alkaline phosphatase	0.201	0.160
Eosinophils	0.185	0.196
MCV	0.135	0.349
Lymphocyte absolute	0.107	0.458
WBC	0.098	0.494
Glucose	0.090	0.531
Total CO2	−0.053	0.712
Potassium	−0.074	0.608
Sodium	−0.085	0.556
Creatinine	−0.103	0.473
Monocytes	−0.150	0.297
Calcium	−0.169	0.238
Hgb	−0.177	0.217
Hct	−0.188	0.189
RBC	−0.218	0.126
Creatine kinase	−0.228	0.116
IgM serum	−0.285	0.044*
Magnesium	−0.285	0.044*
Albumin	−0.383	0.005*

Note that even the measurements that are significantly correlated (marked with an asterisk), the correlation coefficients are not that strong