Table 1.
Participants Included in the Analysis and Questionnaire Response by Prenatal DES Exposure Status
| Variable | DES-Exposeda | DES-Unexposeda |
|---|---|---|
| Total | 4236 (100) | 1848 (100) |
| Reason for exclusion | ||
| 1994 and 1997 questionnaires only | 256 (6.0) | 118 (6.4) |
| Deceasedb | 39 (0.92) | 25 (1.4) |
| Included in analysis | 3941 (93.0) | 1705 (92.3) |
| Responded to 2001, 2006, and 2011 questionnaires | 2980 (70.3) | 1331 (72.0) |
Values are expressed as number (percentage) of participants.
a
Percentages are based on the total number of women in each column.
b
Women who died were excluded if they did not respond to a 2001, 2006, or 2011 questionnaire (in which women were queried about CVD), and their cause of death was not one of the outcomes being analyzed.