Table 1
 Incidence of preterm meconium staining of the amniotic fluid (MSAF) by gestation
Gestation (weeks)
No of births
No with MSAF
Percentage with MSAF
23
28
0
0
24
56
0
0
25
43
2
4.7
26
63
4
6.3
27
52
3
5.8
28
94
7
7.4
29
141
7
5.0
30
147
7
4.8
31
186
7
3.8
32
244
8
3.3
All
1054
45
4.3