. Author manuscript; available in PMC: 2010 Jul 6.

Published in final edited form as: Water Qual Expo Health. 2009 Feb 1;1(1):23–34. doi: 10.1007/s12403-009-0003-x

Table 3.

Distributions of Cumulative Exposure (g) up to LMP Month and Year, Maximum Annual Exposure (g) Before LMP Year, and Average Monthly Exposure (g) During LMP Year Among PCE Exposed Pregnancies

	Cumulative Exposure Up to LMP Month and Year	Maximum Annual Exposure Before LMP Year	Average Monthly Exposure During LMP Year
n	2,395^a	2,047^a	1,956^a
Minimum	2.8E-04	1.2E-03	7.5E-05
10th Percentile	1	10.0E-01	2.3E-02
25th Percentile	6	4	1.2E-01
Median	27	16	5.5E-01
75th Percentile	113	55	2
90th Percentile	334	145	6
Maximum	4,019	1,698	132

439 subjects were exposed only before the LMP year, 348 subjects were exposed only during the LMP year, and 1,608 subjects were exposed both before and during the LMP year. Thus, 2,395 subjects (439 +1608 + 439 +348) contributed to the measure of cumulative exposure up to the LMP month and year, 2,047 subjects (1608 + 439) contributed to the maximum exposure before the LMP year, and 1,956 subjects (1608 + 348) contributed to the average monthly exposure during the LMP year.