Table 4.
Previous (1) and subsequent (2) inter-gestational interval (days) between pregnancy 1–2 for MWNH (3) by proband gender.
| Probands | Unaffected | ||||
|---|---|---|---|---|---|
| N | Mean | N | Mean | p value | |
| All MWNH | |||||
| Previous | 74 | 1375.8 | 94 | 1070.3 | 0.014 |
| Subsequent | 49 | 1180.1 | 122 | 1208.5 | n.s. |
| MWNH, male offspring | |||||
| Previous | 29 | 1425.9 | 46 | 1134.5 | n.s. |
| Subsequent | 28 | 1193.8 | 55 | 1126.3 | n.s. |
| MWNH, female offspring | |||||
| Previous | 45 | 1343.5 | 48 | 1008.7 | n.s. |
| Subsequent | 21 | 1161.8 | 67 | 1275.9 | n.s. |
Notes: (1) Previous-calculated from second-born probands. (2) Subsequent- calculated from first-born probands. (3) MWNH = mothers with no history of spontaneous abortion. Cases with stillbirths were excluded from the analysis.