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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Curr Opin Obstet Gynecol. 2017 Aug;29(4):202–211. doi: 10.1097/GCO.0000000000000373

Table 3.

Overview of studies on female urinary concentrations of parabens and markers of fecundity.

Citation Years of Study Number of Women Type of Study Timing of Exposure Median urinary paraben concentration (ng/mL) Outcome(s) Results
Smith et al. 2013 2004–2010 192 Prospective fertility patient study Study entry, and between day 3–9 and 10–20 of menstrual cycle BP-Median 2.08 (IQR 0.40, 6.58)
MP-Median 210 (IQR 75.2, 520)
PP-Median 49.6 (IQR 13.0, 89.3)
Markers of ovarian response PP was weakly associated with AFC, but no with day 3 FSH levels or ovarian volume. No associations for MP or BP.
Minguez-Alarcon et al. 2016 2004–2012 245 Prospective IVF study Between day 3–9 and 10–20 of menstrual IVF cycle BP-Median 1.18 (IQR 0.29, 5.77)
MP-Median 163 (IQR 52.2, 380)
PP-Median 31.4 (IQR 8.21, 90.2)
IVF outcomes No association with total and mature oocytes, embryo quality, fertilization, implantation, clinical pregnancy or live birth.
Smarr et al. 2016 2005–2009 501 Prospective TTP study Study entry BP-Median 0.59 (IQR 0.08, 2.84)
MP-Median 31.9 (IQR 12.0, 104)
PP-Median 12.1 (IQR 3.54, 35.6)
EP-Median 1.09 (IQR 0.27 5.62)
Couples fecundity as TTP Only associated with longer TTP when MP and EP was divided in groups.
Nishihama et al. 2016 2012–2013 128 Cross-sectional study 1–2 months after they joined the study BP-Median 0.63 (Range <LOD, 67)
MP-Median 273 (Range 2.97, 4107)
PP-Median 7.38 (Range <LOD, 245)
EP-Median 4.04 (Range <LOD, 166)
Menstrual cycle length BP and sum of parabens were associated with shorter menstrual cycle length. No associations for MP, EP or PP.