Table 1 Characteristics of LGA and AGA study subjects in the Shanghai Birth Cohort.

From: Fetal overgrowth and weight trajectories during infancy and adiposity in early childhood

 

LGA

AGA

Pa

(n = 259)

(n = 1673)

 

Mothers

Age (years)

28.8 ± 3.8

29.3 ± 3.7

0.10

 >35

12 (4.6)

122 (7.3)

0.12

Ethnicity, Han

212 (99.5)

1455 (98.6)

0.35

Education (university)

111 (56.9)

797 (61.4)

0.23

Primiparity

29 (13.7)

205 (13.9)

0.95

Pre-pregnancy BMI, kg/m2

22.5 ± 3.0

21.3 ± 3.0

<0.0001

 Obesity (BMI > 28)

13 (6.2)

43 (2.9)

0.01a

Gestational diabetes

55 (23.4)

286 (18.5)

0.08

Gestational hypertension

15 (5.8)

54 (3.2)

0.04

Alcohol in pregnancy

16 (8.3)

203 (15.0)

0.02

Smoking in pregnancy

1 (0.5)

6 (0.5)

1.00

Infants

Cesarean delivery

172 (67.7)

808 (49.9)

<0.0001

Sex, male

128 (49.4)

891 (53.3)

0.25

Gestational age (weeks)

39.2 ± 1.2

38.9 ± 1.3

0.01

Preterm birth (<37 weeks)

8 (3.1)

67 (4.0)

0.48

Breast feeding

214 (94.3)

1409 (95.1)

0.61

Weight

At birth (g)

4111 ± 285

3340 ± 334

<0.0001

 6 weeks (kg)

5.8 ± 0.6

5.1 ± 0.6

<0.0001

 6 months (kg)

9.0 ± 0.9

8.5 ± 1.0

<0.0001

 1 years (kg)

11.0 ± 1.1

10.3 ± 1.1

<0.0001

 2 years (kg)

13.8 ± 1.6

12.8 ± 1.4

<0.0001

 4 years (kg)

19.3 ± 3.4

17.7 ± 3.3

<0.0001

Length/height (cm)

At birth

51.1 ± 1.3

49.8 ± 1.1

<0.0001

 6 weeks

58.2 ± 2.1

56.5 ± 2.1

<0.0001

 6 months

69.4 ± 2.1

68.0 ± 2.5

<0.0001

 1 years

77.5 ± 2.7

76.2 ± 2.5

<0.0001

 2 years

90.2 ± 3.5

88.5 ± 3.1

<0.0001

 4 years

110.4 ± 5.1

108.3 ± 4.6

<0.0001

  1. Data presented are n (%) for categorical variables and mean ± SD for continuous variables.
  2. LGA large-for-gestational age (>90th percentile, according to the Chinese sex- and gestational age-specific birth weight standards), AGA appropriate-for-gestational age (birth weight 10–90th percentiles), BMI body mass index.
  3. aP values in t tests for differences in means (for continuous variables) or Chi square tests for differences in proportions (categorical variables) between the two groups. P values in bold: P < 0.05.