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Table 1 Summary statistics of the estimation samples

From: Variation in the relationship between birth weight and subsequent obesity by household income

 

Full

Sibling

Total (N)

31,043

19,460

Male (N)

15,718

9,806

Female (N)

15,325

9,654

Birth weight (mean)

3.34

3.35

Obese (%)

11.2

10.5

Age (mean)

9.0

9.1

Maternal age at birth (mean)

28.9

28.7

Preterm birth (%)

5.0

5.6

LN household income (mean)

9.8

9.8

Survey year (%)

 2000

1.09

1.10

 2001

7.70

7.79

 2002

16.93

17.80

 2004

3.16

3.19

 2005

6.13

6.20

 2006

0.32

0.37

 2007

15.86

15.78

 2008

15.41

15.36

 2009

8.37

8.24

 2010

11.17

10.86

 2011

3.29

3.06

 2012

3.40

3.53

 2013

3.73

3.43

 2014

3.46

3.29