Table 3.

Estimated coefficients of the concatenated multivariable regressions from module 2 (M2)

Variables	(1) Gestational age at birth (weeks)	(2) Birth weight (kg)	(3) Weight at 6 months (kg)	(4) Weight at 18 months (kg)	(5) BMI at 48 months	(6) BMI at 84 months	(7) BMI at 120 months
EHII	0.31 [0.11 to 0.51]	− 0.55 [− 0.99 to − 0.10]	− 0.60 [− 1.58 to 0.39]	1.36 [0.07 to 2.65]	− 0.31 [− 0.57 to − 0.05]	− 0.52 [− 0.93 to − 0.10]	− 0.85 [− 1.58 to − 0.12]
Mother’s age	− 0.05 [− 0.06 to − 0.04]	0.03 [0.01 to 0.06]	− 0.05 [− 0.11 to − 0.00]	− 0.02 [− 0.09 to 0.05]	− 0.00 [− 0.02 to 0.01]	0.00 [− 0.02 to 0.03]	− 0.01 [− 0.05 to 0.03]
Mother’s country of birth	0.02 [− 0.19 to 0.22]	0.65 [0.11 to 1.19]	1.88 [0.66 to 3.09]	− 1.30 [− 2.82 to 0.23]	− 0.20 [− 0.54 to 0.14]	− 0.01 [− 0.62 to 0.61]	0.17 [− 0.87 to 1.22]
Sex	− 0.05 [− 0.13 to 0.04]	− 1.39 [− 1.58 to − 1.19]	− 4.46 [− 4.90 to − 4.02]	− 1.47 [− 2.07 to − 0.86]	0.29 [0.18 to 0.41]	0.16* [− 0.01 to 0.34]	− 0.12 [− 0.40 to 0.17]
Gestational age at birth (weeks)		1.70 [1.63 to 1.76]	− 0.46 [− 0.62 to − 0.29]
Birth weight (kg)			0.89 [0.83 to 0.94]	0.23 [0.16 to 0.30]
Weight at 6 months (kg)				0.83 [0.79 to 0.87]	0.01 [0.00 to 0.02]
Weight at 18 months (kg)					0.05 [0.05 to 0.06]	0.02 [0.01 to 0.03]
Body mass index at 48 months						0.55 [0.48 to 0.63]	0.27 [0.15 to 0.39]
Body mass index at 84 months							0.77 [0.67 to 0.88]
Constant	38.83 [37.39 to 40.27]	− 31.01 [− 34.98 to − 27.03]	73.19 [64.52 to 81.86]	32.69 [22.92 to 42.47]	10.70 [8.75 to 12.66]	8.73 [5.55 to 11.92]	7.62 [2.03 to 13.22]
Observations	6387	6202	5173	4141	2923	1621	658
R2	0.01	0.37	0.28	0.46	0.20	0.26	0.49

Note: 95% confidence intervals in brackets. EHII Equivalised Household Income Indicator. Sex (0 = male; 1 = female). Mother’s country of birth (0 = Italy; 1 = others)