Underground Coal Mining: Relationship between Coal Dust Levels and Pneumoconiosis, in Two Regions of Colombia, 2014

Table 3

Distribution of parenchymal abnormalities by department.

	Cundinamarca		Boyacá
	Number	%	Number	%
Small opacities
p/p	8	8.79%	8	11.59%
p/q	7	7.69%	8	11.59%
p/t	0	0.00%	1	1.45%
q/p	14	15.38%	19	27.54%
q/q	32	35.16%	31	44.93%
q/r	13	14.29%	2	2.90%
r/q	8	8.79%	0	0.00%
r/r	8	8.79%	0	0.00%
r/t	1	1.10%	0	0.00%
Total	91	100.00%	69	100.00%
Large opacities
A	1	1.10%	2	2.90%
B	0	0.00%	2	2.90%
C	0	0.00%	0	0.00%
No	90	98.90%	65	94.20%
Total	91	100.00%	69	100.00%