Organochlorine Pesticide Levels and Risk of Parkinson’s Disease in North Indian Population

Table 2

Distribution and comparison of organochlorine pesticides, present in ≥40% subjects of Parkinson’s disease.

Variables	Median		𝑈-value	𝑧-value	𝑟-value	𝑃-value
	Control	Case
β-HCH	0	2.03	1467.000	−5.404	−0.448	0.000*
Dieldrin	0	4.20	1116.000	−7.043	−0.584	0.000*
𝑝𝑝^′-DDE	0	0	2076.000	−2.650	−0.220	0.008*

∗Significant 𝑃<0.05 by Mann Whitney tests.