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.

Farley Cerebrospinal Fluid Research 2006 3:10   doi:10.1186/1743-8454-3-10