Table 3 Odds ratios for overweight per z-score increase in weight for length for each of the five sets of models, as estimated using standardised residuals for each of the exposures. The ORs are also adjusted for gestational age and sex

(a) Conditional growth:

 Birth to 6w

1.32

1.10, 1.57

0.002

 6w to 3 m

1.19

1.00, 1.42

0.049

 3 to 6 m

1.48

1.24, 1.78

<0.001

 6 to 12 m

1.3

1.09, 1.56

0.004

 12 to 24 m

1.32^a

1.10, 1.58

0.003

(b) Being bigger:

 At birth

1.31

1.10, 1.56

0.003

 birth to 6w

1.45

1.22, 1.73

<0.001

 birth to 3 m

1.51

1.27, 1.81

<0.001

 birth to 6 m

1.64

1.37, 1.97

<0.001

 birth to 12 m

1.72

1.43, 2.07

<0.001

 birth to 24 m

1.83

1.52, 2.22

<0.001

(c) Becoming bigger and staying bigger:

 Birth to 6w

1.71

1.41, 2.07

<0.001

 6w to 3 m

1.42

1.18, 1.71

<0.001

 3 to 6 m

1.62

1.35, 1.95

<0.001

 6 to 12 m

1.41

1.18, 1.69

<0.001

 12 to 24 m

1.32^a

1.10, 1.58

0.003

(d) Growing faster v being bigger:

 Birth to 6w

0.89

0.75, 1.06

0.19

 6w to 3 m

0.87

0.73, 1.03

0.11

 3 to 6 m

1.03

0.86, 1.23

0.8

 6 to 12 m

0.86

0.72, 1.03

0.01

 12 to 24 m

0.79^b

0.66, 0.94

0.01

(e) Becoming bigger v being bigger:

 Birth to 6w

0.91

0.76, 1.09

0.30

 6w to 3 m

0.88

0.74, 1.05

0.14

 3 to 6 m

1.03

0.87, 1.23

0.7

 6 to 12 m

0.89

0.75, 1.06

0.19

 12 to 24 m

0.79^b

0.66, 0.94

0.01