Table 4 Differences in body circumferences from 18 to 22 years of age (measurements at 22 – measurements at 18 years) by sex, according to socioeconomic and demographic characteristics, maternal information and dietary intake at 18 years

SEP (quintiles)^a

0.187 ^b

0.001 ^b

0.270 ^b

0.003 ^b

0.142 ^b

0.004 ^b

 1^stquintile (lowest)

1.8 (1.0; 2.6)

3.6 (2.9; 4.3)

1.0 (0.3; 1.6)

2.3 (1.8; 2.9)

1.2 (0.8; 1.6)

2.7 (2.2; 3.1)

 2^ndquintile

2.7 (2.0; 3.5)

4.0 (3.2; 4.8)

1.7 (1.1; 2.2)

2.4 (1.8; 3.0)

1.6 (1.2; 1.9)

2.4 (1.9; 2.9)

 3^rdquintile

3.0 (2.3; 3.7)

3.5 (2.8; 4.2)

1.7 (1.2; 2.3)

2.5 (1.9; 3.1)

2.0 (1.6; 2.4)

2.6 (2.2; 3.1)

 4^th quintile

2.8 (2.1; 3.5)

3.0 (2.2; 3.7)

1.7 (1.1; 2.2)

1.7 (1.1; 2.4)

1.6 (1.3; 2.0)

2.0 (1.5; 2.5)

 5^th quintile (highest)

2.7 (2.0; 3.4)

1.8 (0.9; 2.6)

1.6 (1.0; 2.2)

1.0 (0.3; 1.6)

1.7 (1.3; 2.1)

1.6 (1.0; 2.1)

Pre-gestational maternal BMI ^a

0.177 ^b

0.040 ^b

0.839 ^b

0.422 ^b

0.413 ^b

0.361 ^b

 Normal

2.5 (2.2; 2.9)

3.0 (2.6; 3.4)

1.5 (1.2; 1.8)

1.9 (1.6; 2.2)

1.6 (1.4; 1.8)

2.2 (2.0; 2.4)

 Overweight

3.4 (2.6; 4.1)

3.9 (3.1; 4.7)

2.0 (1.4; 2.6)

2.5 (1.8; 3.1)

1.8 (1.4; 2.2)

2.5 (2.0; 3.0)

 Obese

2.7 (1.2; 4.1)

3.9 (2.4; 5.4)

0.9 (−0.2; 2.1)

1.8 (0.6; 3.0)

1.7 (1.0; 2.5)

2.3 (1.4; 3.3)

Maternal age at birth ^a

0.143 ^b

0.902 ^b

0.153 ^b

0.867 ^b

0.040 ^b

0.769 ^b

 18 to 35 years

2.8 (2.4; 3.1)

3.2 (2.8; 3.5)

1.7 (1.4; 1.9)

2.0 (1.7; 2.3)

1.7 (1.5; 1.9)

2.3 (2.0; 2.5)

  < 18 years

2.4 (1.3; 3.6)

3.5 (2.3; 4.8)

1.5 (0.5; 2.4)

2.3 (1.3; 3.2)

1.5 (0.9; 2.1)

2.8 (2.0; 3.6)

  ≥ 36 years

2.0 (1.0; 3.0)

3.1 (2.0; 4.3)

1.0 (0.2; 1.8)

1.8 (0.9; 2.7)

1.1 (0.6; 1.7)

1.9 (1.2; 2.6)

Birth weight ^a

0.732 ^b

0.349 ^b

0.427 ^b

0.537 ^b

0.929 ^b

0.393 ^b

  < 2500 g

2.8 (1.6; 4.0)

2.7 (1.6; 3.7)

2.0 (1.0; 2.9)

1.6 (0.7; 2.4)

1.8 (1.2; 2.4)

1.7 (1.1; 2.3)

 2500-4000 g

2.6 (2.3; 3.0)

3.3 (2.9; 3.6)

1.6 (1.3; 1.8)

2.1 (1.8; 2.4)

1.6 (1.5; 1.8)

2.4 (2.2; 2.6)

  > 4000 g

3.1 (1.9; 4.4)

3.3 (1.6; 5.0)

1.4 (0.4; 2.4)

1.5 (0.2; 2.9)

1.8 (1.1; 2.4)

1.5 (0.5; 2.7)

Skin colour ^a

0.879 ^b

0.076 ^b

0.543 ^b

0.708 ^b

0.502 ^b

0.207 ^b

 White

2.7 (2.3; 3.1)

2.8 (2.4; 3.3)

1.5 (1.2; 1.9)

1.9 (1.6; 2.3)

1.6 (1.4; 1.8)

2.1 (1.8; 2.4)

 Brown

2.8 (2.0; 3.6)

3.4 (2.6; 4.2)

1.8 (1.1; 2.4)

2.0 (1.4; 2.7)

1.7 (1.3; 2.2)

2.4 (1.9; 2.9)

 Black

2.6 (1.7; 3.4)

4.3 (3.4; 5.2)

1.5 (0.8; 2.2)

2.2 (1.5; 2.9)

1.8 (1.4; 2.3)

2.7 (2.1; 3.2)

Daily energy intake in kcal at 18y (quintiles) ^a

0.890 ^b

0.673 ^b

0.168 ^b

0.910 ^b

0.296 ^b

0.336 ^b

 1^st (lowest)

2.7 (2.0; 3.3)

3.1 (2.5; 3.7)

1.4 (0.9; 1.9)

2.1 (1.7; 2.5)

1.6 (1.2; 1.9)

2.2 (1.8; 2.6)

 2^nd

2.8 (2.2; 3.3)

2.9 (2.3; 3.5)

1.6 (1.1; 2.0)

1.6 (1.1; 2.1)

1.7 (1.4; 2.0)

2.1 (1.7; 2.5)

 3^rd (highest)

2.7 (2.2; 3.2)

3.3 (2.7; 4.0)

1.9 (1.4; 2.3)

2.2 (1.7; 2.7)

1.8 (1.5; 2.1)

2.5 (2.1; 2.9)