Table 2.

Spearman’s correlation of the annotator’s, ground truth, and algorithmic total hemosiderin score (THS) with the ground truth THS as well as the red blood cell count, hemoglobin concentration, and iron concentration from bronchoalveolar lavage fluid.

THS Method	Ground Truth THS	Red Blood Cell Count	Hemoglobin Concentration	Iron Concentration
Mean annotators’ THS	.98	.08	.11	.75
THS of individual annotators	.91–.97 (median: .94)	−.11 to .14 (median: .05)	−.07 to .19 (median: .11)	.61–.79 (median: .72)
Ground truth THS	1.0	.06	.15	.75
Algorithmic THS	.98	.12	.20	.79