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Table 2 Maternal and infant characteristics according to percentiles of cord blood leptin (ng/mL) and adiponectin (μg/mL) a

From: A birth cohort study to investigate the association between prenatal phthalate and bisphenol A exposures and fetal markers of metabolic dysfunction

  

Leptin (Row%)

Adiponectin (Row%)

  

Percentiles

 

Percentiles

 

Characteristic

N

≤10th

10th-90th

≥90th

p-value

≤10th

10th-90th

≥90th

p-value

Age (yr)

         

≤24

53

11.3

81.1

7.6

0.50

9.4

81.1

9.4

0.92

25-29

265

9.8

77.7

12.5

 

10.6

77.7

11.7

 

30-34

448

7.8

83.4

8.7

 

9.4

81.3

9.4

 

≥35

472

11.7

78.0

10.4

 

9.8

80.1

10.2

 

BMI

         

Underweight (<18.5)

27

22.2

70.4

7.4

<0.01

22.2

70.4

7.4

0.22

Normal (18.5 to 24.9)

707

12.8

80.0

7.5

 

11.0

78.5

10.5

 

Overweight (25 to 29.9)

266

3.8

83.8

12.4

 

8.3

80.8

10.9

 

Obese (≥30)

170

5.9

75.9

18.2

 

7.7

83.5

8.8

 

Parity

         

Nulliparous

520

9.0

77.1

13.9

0.01

9.0

79.6

11.4

0.17

Parous

715

10.5

82.1

7.4

 

10.6

80.0

9.4

 

Education

         

High school diploma or less

105

10.5

78.1

11.4

0.51

10.5

80.1

8.6

0.10

Some college, or trade school

351

10.3

77.2

12.5

 

11.7

79.2

9.1

 

Undergraduate univ. degree

470

9.8

81.7

8.5

 

9.2

80.9

10.0

 

Graduate university degree

309

9.4

81.2

9.4

 

9.1

78.6

12.3

 

Household income ($CAD)

         

≤30,000

87

12.6

75.9

11.5

0.50

12.6

79.3

8.1

0.27

30,001-50,000

114

5.3

83.3

11.4

 

7.9

84.2

7.9

 

50,001-100,000

506

10.7

77.9

11.5

 

11.1

77.3

11.7

 

≥100,000

481

9.2

82.3

8.5

 

8.1

82.1

9.8

 

Ethnicity

         

Caucasian

1064

9.6

80.5

10.0

0.80

10.3

78.8

10.9

0.53

Not Caucasian

173

11.6

77.58

11.0

 

7.5

86.7

5.8

 

Maternal smoking

         

Never or quit before pregnancy

1091

9.8

80.8

9.4

0.27

9.9

80.0

10.2

0.74

Quit when knew pregnant

86

9.3

75.6

15.1

 

11.6

80.2

8.1

 

Current smoker

60

11.7

73.3

15.3

 

8.3

78.3

13.3

 

Infant sex

         

Male

677

10.1

79.6

10.3

0.94

9.5

81.7

8.8

0.40

Female

586

9.6

80.5

9.9

 

10.4

77.7

11.8

 

Cord blood adiponectin (μg/ml)

         

≤10%

123

43.1

50.4

6.5

<0.01

--

--

--

--

10-90%

988

6.7

84.3

9.0

     

≥90%

126

2.4

75.4

22.2

     

Cord blood leptin (ng/mL)

         

≤10%

122

--

--

--

--

43.4

54.1

2.5

<0.01

<90%

990

    

6.3

84.4

9.6

 

≥90%

125

    

6.4

71.2

22.4

 
  1. aDue to missing covariate data, subgroup totals may not sum to the total sample population.