Table 3 Birthweight distribution classified by INTERGROWTH21st and the customized method and proportion of newborns with PI <10th centile, normal PI and PI>90th centile in each of the groups

SGA: N (%)

11 (4.8%)

25 (10.8%)

PI <10th centile

3 (27.3% of IG SGA)

8 (32% of CM SGA)

PI between 10th and 90th centile

8 (72.7% of IG SGA)

17 (68% of CM SGA)

PI >90th centile

0

0

AGA: N (%)

160 (69.3%)

175 (75.8%)

PI <10th centile

16 (10% of IG AGA)

12 (6.9% of CM AGA)

PI between 10th and 90th centile

131 (81.9% of IG AGA)

147 (84% of CM AGA)

PI >90th centile

13 (8.1% of IG AGA)

16 (9.1% of CM AGA)

LGA: N (%)

60 (26%)

31 (13.4%)

PI <10th centile

1 (1.7% of IG LGA)

0

PI between 10th and 90th centile

40 (66.7% of IG LGA)

15 (48.4% of CM LGA)

PI >90th centile

19 (31.7% of IG LGA)

16 (51.6% of CM LGA)