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Table 3 Distribution of cumulative PCE exposure before LMP and average monthly PCE exposure during LMP year among exposed index pregnancies

From: Prenatal drinking-water exposure to tetrachloroethylene and ischemic placental disease: a retrospective cohort study

 

Cumulative exposure (g) before LMP month and year (N = 1,188).a

Average monthly exposure (g) during LMP month and year (N = 1,091).a

Minimum

2.8 × 10-4

1.2 × 10-4

5th percentile

3.4 × 10-1

1.7 × 10-2

10th percentile

1.0

4.0 × 10-2

Median

28.9

0.9

75th percentile

117.2

2.9

90th percentile

333.4

7.7

Maximum

3,600

89.2

  1. Abbreviations: LMP last menstrual period, PCE tetrachloroethylene.
  2. aThere were 1,091 pregnancies that were exposed both before and during the LMP year. All pregnancies exposed during the LMP year were also exposed before the LMP year, but 97 pregnancies exposed before the LMP year were unexposed during the LMP year. Thus, average monthly exposure during the LMP year includes 1,188 exposed pregnancies (1,091 + 97).
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Environmental Health

ISSN: 1476-069X