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Table 2 Descriptive statistics for a complete group of triplets born in the Netherlands between 2000 and 2006, a subset from this group including all triplets still alive after 28 days, and the NTR sample

From: Birth weight in a large series of triplets

 

Dutch triplets

(cohort 2000 -

2006)

Dutch triplets

(cohort 2000 -

2006) alive

after 28 days

NTR sample

Cohort

2000 - 2006

2000 - 2006

1970 - 2006

Parity (% primiparous)

54.7

50.9

51.9

 

M (sd)

N

M (sd)

N

M (sd)

N

BW

1745 (688)

1324

1920 (546)

1092

1900 (471)

1219

GA

32.3 (4.1)

1323

33.4 (2.8)

1092

33.7 (2.6)

1219

Age mother

31.6 (4.3)

486

31.7 (4.2)

379

30.8 (3.6)

348

  1. BW = birth weight; GA = gestational age; NTR = Netherlands Twin Register.