Skip to main content

Table 3 Fecundability ratios according to female serum concentrations of PFAS

From: Perfluoroalkyl substances and time to pregnancy in couples from Greenland, Poland and Ukraine

  

PFOA

PFOS

PFHxS

PFNA

Greenland

N

FR (95% CI)

FR (95% CI)

FR (95% CI)

FR (95% CI)

 Low

150

1 (Reference)

1 (Reference)

1 (Reference)

1 (Reference)

 Medium

149

0.95 (0.72, 1.26)

0.80 (0.60, 1.05)

1.05 (0.79, 1.38)

0.76 (0.58, 1.00)

 High

149

0.87 (0.65, 1.18)

0.80 (0.60, 1.05)

0.90 (0.68, 1.19)

0.71 (0.54, 0.94)

 Continuous log-scale

448

0.97 (0.73, 1.27)

0.83 (0.64, 1.07)

0.97 (0.78, 1.20)

0.72 (0.58, 0.89)

Poland

     

 Low

68

1 (Reference)

1 (Reference)

1 (Reference)

1 (Reference)

 Medium

68

0.94 (0.62, 1.42)

0.87 (0.57, 1.33)

0.86 (0.57, 1.30)

0.94 (0.62, 1.41)

 High

67

1.08 (0.71, 1.64)

0.90 (0.60, 1.37)

0.94 (0.62, 1.42)

1.31 (0.87, 1.98)

 Continuous log-scale

203

1.21 (0.79, 1.84)

0.94 (0.58, 1.50)

0.90 (0.65, 1.24)

1.35 (0.93, 1.95)

Ukraine

     

 Low

96

1 (Reference)

1 (Reference)

1 (Reference)

1 (Reference)

 Medium

96

1.12 (0.78, 1.59)

0.89 (0.62, 1.27)

0.85 (0.59, 1.23)

0.79 (0.55, 1.12)

 High

95

1.04 (0.72, 1.51)

0.93 (0.64, 1.34)

1.11 (0.78, 1.58)

0.88 (0.62, 1.26)

 Continuous log-scale

287

1.20 (0.87, 1.67)

1.06 (0.78, 1.45)

1.05 (0.84, 1.31)

0.74 (0.53, 1.04)

Pooled sample

     

Continuous log-scale

938

1.04 (0.87, 1.25)

0.90 (0.76, 1.07)

0.97 (0.85, 1.11)

0.80 (0.69, 0.94)

  1. FRs are presented in country-specific tertiles and according to a continuous logarithm-transformed scale.
  2. CI confidence intervals, FR fecundability ratio, N number of women, PFAS perfluoroalkyl substances.
  3. The FR analyses are adjusted for parity, gestational week of blood sampling, smoking status, maternal age and BMI. In addition the pooled analysis is adjusted for country.