Gestationa age

Number (%)

PBWR (%)

P value

37

222 (10.54)

21.15

<0.0001

Significant

38

746 (35.42)

19.92

39

481 (22.84)

19.70

40

466 (22.13)

19.96

41

173 (8.21)

20.00

42

18 (0.86)

22.93

Total

2106