Semen quality in Peruvian pesticide applicators: association between urinary organophosphate metabolites and semen parameters

Table 1 Chi-square test to evaluate the presence/absence of OPs metabolites in men from Majes, Arequipa.

Dependent variable	Non Exposed n/N (%)	Exposed n/N (%)	p	No Exposed GM((DS(GM)))	Exposed GM((DS(GM))	p
DEP	5/31 (16.1)	8/31 (25.8)	0.53	2.99(2.06)	3.75 (8.17)	0.31
DEDTP	9/31 (29.0)	18/31 (58.1)	0.04	10.24(54.46)	25.33 (78.60)	0.01
DETP	2/31 (6.5)	10/31 (32.3)	0.02	2.66(1.02)	3.85 (7.15)	0.10
DMP	23/31 (74.2)	26/31 (86.9)	0.53	9.57(19.47)	14.22 (42.42)	0.14
DMDTP	5/31 (16.1)	1/31 (3.2)	0.19	56.37(6.65)	5.3 (4.53)	0.10
DMTP	18/31 (58.1)	25/31 (80.6)	0.09	9.69(68.72)	22.92 (48.55)	0.02

n = number of subjects with the metabolite in urine. N = number of subjects in each group (exposed or non exposed subjects). P: level of significance after chi square test.
LOD (Limit of detection) for: DMP, DMTP, DEP, DETP 5 ug/l. DMDTP, DEDTP 10 ug/l.

ISSN: 1476-069X