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. 2018 Feb 20;2018(2):hoy001. doi: 10.1093/hropen/hoy001

Table III.

Key findings in the EARTH Study.

Studies on endocrine disrupting chemicals
Study participant EDC Key finding Reference
Women undergoing ART DEHP Decreased oocyte yield Hauser et al. (2016)
Women undergoing ART DEHP Decreased probability of clinical pregnancy Hauser et al. (2016)
Women undergoing ART DEHP Decreased probability of live birth Hauser et al. (2016)
Women conceiving with ART or non-ART DEHP Increased pregnancy loss Messerlian et al. (2016b)
Men with female partner undergoing ART DOP and DiNP Decreased odds of implantation Dodge et al. (2015)
Men with female partner undergoing ART DOP and DiNP Decreased odds of live birth Dodge et al. (2015)
Women undergoing ART BPA (modification by soy) Among women not consuming soy, BPA associated with decreased probability of implantation, clinical pregnancy and live birth Minguez-Alarcon et al. (2016)
Women undergoing ART BPA (modification by folate) Among women consuming <400 μg food folate/day, BPA associated with decreased probability of implantation, clinical pregnancy and live birth Chavarro et al. (2016)
Female EARTH Study participants DEHP Decreased number of antral follicles measured on Day 3 of an unstimulated cycle Messerlian et al. (2016a)
Female EARTH Study participants BPA Decreased number of antral follicles measured on Day 3 of an unstimulated cycle Souter et al. (2013)
Female EARTH Study participants BPA Increased maternal blood glucose levels Chiu et al. (2017)
Male EARTH Study participants DBP Decreased sperm concentration Hauser et al. (2006)
Studies on nutrition
Study participant Dietary factor Key finding Reference
Women undergoing ART Folate Increased live birth rate Gaskins et al. (2014)
Women undergoing ART Vitamin B12 Increased live birth rate Gaskins et al. (2015)
Women undergoing ART Whole grains Increased live birth rate Gaskins et al. (2016)
Women undergoing ART Soy product Increased live birth rate Vanegas et al. (2015)
Women undergoing ART Vitamin D Increased fertilization rate Abadia et al. (2016)
Male EARTH Study participants Caffeine Decreased live birth rate Abadia et al. (2017)
Male EARTH Study participants Soy Decreased sperm concentration Chavarro et al. (2008)
Male EARTH Study participants Saturated fats Decreased sperm concentration Attaman et al. (2012)
Male EARTH Study participants Trans fatty acids Decreased sperm concentration Chavarro et al. (2011)
Male EARTH Study participants Fish and omega fatty acids Increased percent of morphologically normal sperm Attaman et al. (2012)
Male EARTH Study participants Processed meat Decreased percent of morphologically normal sperm Afeiche et al. (2014)
Male EARTH Study participants High pesticide residue fruit and vegetables Decreased total sperm count and decreased percent morphologically normal sperm Chiu et al. (2015)
Studies on lifestyle factors
Study participant Lifestyle factor Key finding Reference
Women undergoing ART Vigorous exercise Increased live birth rate among women with normal BMI Gaskins et al. (2016)
Female EARTH Study participants Heavy lifting/moving heavy objects at work Fewer total and mature oocytes and decreased number of antral follicles Minguez-Alarcon et al. (2017)
Male EARTH Study Participants Physical activity Higher sperm concentration Chavarro et al. (2010)
Male EARTH Study Participants BMI Men with BMI≥35 kg/m2: decreased total sperm count Chavarro et al. (2010)

EDC, Endocrine Disrupting Chemical; DEHP, di-(2-ethylhexyl) phthalate; DOP, Di-n-octyl phthalate; DiNP, Di-isononyl phthalate; DBP, Di-n-butyl phthalate; BPA, Bisphenol A.