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Response by sibship size
| No. of pedigrees |
|||||
|---|---|---|---|---|---|
| Reported no. of siblings | Total* | With no reply | With at least one reply | Completely captured | Ratio of responding siblings to reported siblings |
| 1 | 25 | 8 | 17 | 17 | 0.68 |
| 2 | 13 | 3 | 10 | 6 | 0.62 |
| 3 | 20 | 8 | 12 | 1 | 0.28 |
| 4 | 15 | 9 | 6 | 2 | 0.25 |
| 5 | 7 | 4 | 3 | 0 | 0.17 |
| 6 | 5 | 1 | 4 | 1 | 0.67 |
| 7 | 6 | 3 | 3 | 0 | 0.24 |
| ≥8 | 7 | 6 | 1 | 0 | 0.06 |
| Total | 98 | 41 | 57 | 27 | 0.31 |
One proband withdrew before mailing any sibling letters.
