. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: Neurotoxicology. 2013 Dec 26;0:260–266. doi: 10.1016/j.neuro.2013.12.008

Table 5. Correlation between cell density and exposure years.

Stained region per high power field (HPF)	Average years worked in Mn mines (n=6)
Stained region per high power field (HPF)	Spearman's rho	p value
Astrocytes caudate	0.314	0.544
Astrocytes putamen	0.429	0.397
Astrocytes GPe	0.429	0.397
Astrocytes GPi	0.143	0.787
Microglia caudate	0.543	0.266
Microglia putamen	0.600	0.208
Microglia GPe	0.406	0.425
Microglia GPi	0.886	0.019^*
Neurons caudate	0.371	0.468
Neurons putamen	0.771	0.072
Neurons GPe	0.429	0.397
Neurons GPi	-0.371	0.468

p<0.05;

GPe=globus pallidus external segment; GPi=globus pallidus internal segment