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Mean age of first intercourse using family comparison.
| Father Status | First Sex | SD | N |
|---|---|---|---|
| Always absent for self | 15.28 | 2.22 | 233 |
| Partially absent for self | 15.36 | 2.12 | 224 |
| Always present for self, absent for sibling | 15.03 | 2.35 | 29 |
| Present in nuclear family, absent in extended family | 16.12 | 1.56 | 71 |
| Present in both nuclear and extended family | 16.39 | 1.63 | 104 |
