“…The mean GA for the entire population at the birth of the first child was 26 weeks with a range of 19 5/7 -30 3/7 weeks (95% CI 24 1/7 -27 6/7 ). We did not observe any difference in the GA at the birth of the first child when comparing subgroup I (pat 4, 5, 7, 10, 13) and subgroup II (pat 1, 3,6,8,9), or considering the presenting symptoms. The GA of the patients in subgroup III (pat 2, 11,12,14,15) was high compared to the other 2 groups, since three patients exceeded 28 weeks at presentation.…”