In order to collect the information, a total of 1,003 telephone interviews were conducted among a random sample of women between September 12, 2006 and October 28, 2006. An oversample was also used to obtain theadditional interviews needed to meet the interview quota for both pregnant and post partum women. In order to qualify for this study, women had to be between the ages of 18 and 64.All households surveyed were within the continental United States. The survey averaged 23 minutes in length. A random sample of telephone numbers was purchased from SDR Consulting, Inc. and quotas were established by region, with pregnant and post partum women being oversampled. The data were weighted to reflect equalproportions of respondents by age based on the U.S. Census. Professional interviewers called from WB&A’stelephone interviewing facilities located in Crofton, Maryland and Ithaca, New York. Approximately 80% of the interviewing was conducted on weekdays between 5:00 pm and 9:00 pm, Saturdays between 10:00 am and 2:00 pm, and Sundays between 4:00pm and 8:00 pm. The remaining interviews were conducted on weekdays between 9:00 am and 5:00 pm. (All times are in Eastern Standard Time.)In survey research, the entire population is typically not interviewed, but rather a sample of that population is polled. Therefore, the data are subject to sampling error. The maximum sampling error of the data for the total sample of 1,003 interviews is ±3.1 percentage points at the 95% confidence level. The sampling error will vary depending on the sample size and the percentages being examined in the sample.Note when reading this report:Percentages may not add up to 100% due to