Phthalates are present in many diverse products, including insect repellents, body lotions, perfumes, and food packaging

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Phthalates are present in many diverse products, including
insect repellents, body lotions, perfumes, and food packaging.
Because animal experiments suggest that phthalates may have an
adverse effect on the male reproductive system, a group of
infertility specialists decided to conduct a case-control study on
phthalate exposure and sperm abnormalities in adult men.100 cases
with sperm abnormalities and 100 controls were identified and
enrolled from among patients at their infertility clinic. 30 cases
and 10 controls had high urinary phthalate levels; the remainder
had normal urinary phthalate levels.