Table 7 Association of body composition at 30 years with breastfeeding duration, according to FTO genotype (rs9939609).

From: Breastfeeding moderates FTO related adiposity: a birth cohort study with 30 years of follow-up

 

Adjusted regression coefficient (95% confidence interval)#

P-value - interaction

Breastfeeding duration in months

<1

1–2.9

3–5.9

≥6

 

Body mass index (kg/m 2 )

FTO genotype

p < 0.001**

p = 0.09*

p = 0.12**

P = 0.18*

0.07

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

1.14 (0.13; 2.15)

−0.11 (−1.01; 0.78)

0.19 (−0.81; 1.20)

−0.13 (−1.05; 0.78)

  AA

2.58 (1.30; 3.87)

1.06 (−0.09; 2.20)

1.08 (−0.20; 2.37)

0.98 (−0.27; 2.23)

 

Prevalence ratio of overweight

FTO genotype

P = 0.004**

P = 0.07**

P = 0.05**

P = 0.87*

0.03

  TT

Reference (1)

Reference (1)

Reference (1)

Reference (1)

  TA

1.17 (0.98; 1.40)

1.02 (0.88; 1.19)

1.06 (0.92; 1.23)

0.97 (0.84; 1.11)

  AA

1.33 (1.09; 1.62)

1.19 (1.01; 1.40)

1.19 (1.01; 1.41)

0.97 (0.81; 1.16)

 

Fat mass index (kg/m 2 )

FTO genotype

P = 0.009**

P = 0.28*

P = 0.09*

P = 0.93*

0.07

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

0.63 (−0.10; 1.36)

−0.25 (−0.90; 0.40)

−0.17 (−0.88; 0.55)

−0.12 (−0.75; 0.51)

  AA

1.25 (0.30; 2.19)

0.38 (−0.45; 1.22)

0.77 (−0.14; 1.68)

−0.09 (−0.96; 0.78)

 

Lean mass index (kg/m 2 )

FTO genotype

P = 0.02**

P = 0.14**

P = 0.03**

P = 0.19**

0.54

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

0.36 (0.04; 0.68)

0.16 (−0.14; 0.47)

0.23 (−0.11; 0.56)

0.01 (−0.29; 0.31)

  AA

0.44 (0.02; 0.86)

0.28 (-0.11; 0.68)

0.36 (−0.06; 0.79)

0.33 (−0.08; 0.75)

 

Waist circumference (cm)

FTO genotype

P < 0.001**

P = 0.10*

P = 0.11*

P = 0.26*

0.04

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

2.21(0.04; 4.37)

−0.57 (−2.51; 1.36)

-0.08 (−2.03; 2.19)

−0.53 (-2.50; 1.43)

  AA

5.65 (2.88; 8.41)

1.94 (−0.53; 4.41)

2.48 (−0.23; 5.18)

1.59 (−1.07; 4.25)

 

Visceral fat thickness (cm)

FTO genotype

P = 0.01**

P = 0.13**

P = 0.38*

P = 0.11**

0.29

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

0.26 (−0.09; 0.61)

0.11 (−0.20; 0.42)

−0.27 (−0.60; 0.05)

0.15 (−0.13; 0.44)

  AA

0.57 (0.13; 1.02)

0.32 (−0.08; 0.71)

−0.03 (−0.45; 0.39)

0.29 (−0.09; 0.68)

 

Subcutaneous abdominal fat thickness (cm)

FTO genotype

P = 0.003**

P = 0.04*

P = 0.02**

P = 0.35*

0.22

  TT

Reference (0)

Reference (0)

Reference (0)

Reference (0)

  TA

0.10 (−0.10; 0.31)

−0.09 (−0.26; 0.08)

0.09 (−0.11; 0.28)

0.00 (−0.17; 0.17)

  AA

0.42 (0.16; 0.68)

0.18 (−0.04; 0.40)

0.31 (0.07; 0.56)

0.15 (−0.07; 0.38)

  1. *P-value for heterogeneity. **P-value for linear trend.
  2. #Adjusted for: Family income at birth, parental schooling, household assets index, maternal smoking during pregnancy, gender, birthweight, maternal prepregnancy body mass index, maternal height, and skin color.