Table 1

Distribution of birthweights in the study cohorts. Distribution of birthweights did not differ between Cohorts.

Birthweight <500 grams

Birthweight 500–749 grams

Birthweight 750–999 grams

Birthweight 1000–1249 grams

Birthweight 1250–1500 grams


Cohort 1 1993–1996

2%

19%

22%

26%

31%

Cohort 2 1996–1999

2%

15%

24%

30%

29%

Cohort 3 1999–2002

2%

18%

25%

27%

28%


Paul et al. BMC Pediatrics 2006 6:2   doi:10.1186/1471-2431-6-2

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