Table 2.

Bivariate associations between serum BPA, and demographic and clinical factors for women undergoing in vitro fertilization, and participating in the Study of Metals and Assisted Reproductive Technologies (SMART).

Factors	n	Correlation coefficient or F-value	P-value
BPA a with:
Asian race/ethnicity	44	2.86	0.10
Ever smoking	43	0.71	0.40
Infertility diagnosis	44	1.55	0.19
Age	44	−0.05	0.77
BMI a, b	41	−0.12	0.44
Peak-E2a, c	43	−0.29	0.06
# Mature-sized follicles (≥13 mm)	44	−0.10	0.50
Peak-E2 per follicle ≥13 mm a, c	43	−0.33	0.03
AFC a, d	43	−0.09	0.55
FSH	44	0.23	0.13
# Oocytes retrieved	44	−0.13	0.40
Peak-E2a, c with:
Asian race/ethnicity	43	0.86	0.36
Ever smoking	43	2.94	0.09
Infertility diagnosis	43	1.19	0.01
Age	43	−0.08	0.62
BMI a, b	40	−0.23	0.16
# Mature-sized follicles (≥13 mm)	43	0.86	<0.0001
AFC a, d, e	42	0.60	<0.0001
FSH	43	−0.27	0.08
# Oocytes retrieved	43	0.70	<0.0001
# Ooctyes retrieved with:
Asian race/ethnicity	44	0.58	0.45
Ever smoking	44	1.76	0.19
Infertility diagnosis	44	2.57	0.04
Age	44	0.04	0.77
BMI a, b	41	0.00	0.98
# Mature-sized follicles (≥13 mm)	44	0.78	<0.0001
AFC a, d, e	43	0.54	0.0002
FSH	44	−0.26	0.08

^aNatural log transformed;

^bn=3 missing values for BMI;

^cn=1 missing value for peak-E₂;

^dn=1 missing value for AFC;

^eexcluding n=3 with anovulation; r=0.63, P<0.0001.

AFC, antral follicle count; BMI, body mass index; BPA, bisphenol A; CI, confidence interval; E₂, estradiol; FSH, follicle stimulating hormone.