Table 3 Effects of TEQ-PCDD/Fs exposure on body size at birth; comparisons of weight, length, and circumference of head and abdomen between higher and lower exposure groups.

From: Altered head size at birth is associated with maternal 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure in Vietnamese infants

 

TEQ-PCDD/Fs

N

Mean

SD

Adj. Mean

95%CI

p

Boys

Weight (g)

Lower

186

3343

442

3352

3293

3410

Ref.

Higher

102

3236

393

3230

3147

3313

0.068

Length (cm)

Lower

186

50.3

2.0

50.3

50.0

50.6

Ref.

Higher

102

49.6

2.0

49.6

49.2

50.0

0.021

BMI

Lower

186

13.2

1.4

13.2

13.0

13.4

Ref.

Higher

102

13.1

1.3

13.1

12.8

13.4

0.712

Head (cm)

Lower

186

33.7

1.6

33.8

33.5

34.0

Ref.

Higher

102

33.6

1.6

33.5

33.2

33.8

0.381

Abdomen (cm)

Lower

186

32.9

2.5

33.1

32.8

33.5

Ref.

Higher

102

32.5

2.4

32.4

31.9

32.9

0.110

Girls

Weight (g)

Lower

167

3199

357

3204

3150

3257

Ref.

Higher

94

3246

381

3238

3166

3310

0.458

Length (cm)

Lower

167

49.8

2.0

49.8

49.5

50.1

Ref.

Higher

94

49.6

1.8

49.6

49.2

49.9

0.315

BMI

Lower

167

12.9

1.1

12.9

12.7

13.1

Ref.

Higher

94

13.2

1.3

13.2

12.9

13.4

0.088

Head (cm)

Lower

167

33.2

1.6

33.2

33.0

33.5

Ref.

Higher

94

33.6

1.6

33.5

33.2

33.9

0.180

Abdomen (cm)

Lower

167

32.7

2.2

32.8

32.4

33.1

Ref.

Higher

94

32.5

2.1

32.4

32.0

32.9

0.235

  1. Lower level: TEQ-PCDD/Fs < 11.5, Higher level; TEQ-PCDD/Fs ≥ 11.5 (pg-TEQ/g lipid),
  2. N: number of subjects, SD: standard deviation, SE: standard error, Ref: Reference for comparison, p: p-value, Covariates: gestational weeks, parity (primipara or not), maternal drinking habit during pregnancy, family smoking, age, height, and educational years of mother ≥ 12, and family income.
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