Table 1

Comparison of the antemortem chest radiograph diagnosed group vs. the group diagnosed by history alone

Positive Chest Radiograph
 Control Group
 P-value

Yes
 No
 % Yes
 Yes
 No
 % Yes
Pleural Plaques
 148
 94
 61.1
 11
 20
 35.4
 0.0109
Fibrosis
 157
 85
 64.8
 14
 17
 45.1
 0.0472
Tissue Ferruginous Bodies
 100
 142
 41.3
 4
 27
 12.9
 0.0016
Digestion Ferruginous Bodies*
 169
 55
 75.5
 13
 15
 46.4
 0.0028
Histologically proven
 89
 153
 36.8
 3
 28
 9.7
 0.0021

* It should be noted that the total number of cases listed for ferruginous bodies tissue digestion does not equal 273 because there

were cases in both the study group and the control group in which tissue digestion was not performed or documented.

Mizell et al. Journal of Occupational Medicine and Toxicology 2009 4:14   doi:10.1186/1745-6673-4-14

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