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Demographic characteristics of study participants
| Characteristics | n (%) |
|---|---|
| Sex | |
| Female | 12 (92) |
| Male | 1 (8) |
| Age (years) | mean 45 (range 30–52) |
| Race | |
| White | 11 (85) |
| Multiracial | 2 (15) |
| Marital status | |
| Married | 11 (85) |
| Common-law | 1 (8) |
| Single | 1 (8) |
| Education | |
| High school graduate | 3 (23) |
| College/university graduate | 8 (62) |
| Master’s graduate | 2 (15) |
| Sex of affected child | |
| Female | 6 (46) |
| Male | 7 (54) |
| Current age of affected child (years) | mean 14 (range 10–18) |
