Table 4

Regression coefficients and 95% CI of head circumference and gestational age in relation to socioeconomic trajectory

Socioeconomic trajectory	Head circumference (cm)				Gestational age (weeks)
Socioeconomic trajectory	Crude	Model 1	Model 2	Model 3	Crude	Model 1	Model 2	Model 3
Mothers	p=0.08	p=0.22	p=0.47	p=0.39	p=0.01	p=0.008	p=0.01	p=0.005
Always poor	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference
Poor→non-poor	−0.03 (−1.00 to 0.95)	−0.28 (−1.50 to 0.95)	0.03 (−1.22 to 1.28)	0.15 (−1.09 to 1.40)	0.12 (−1.28 to 1.52)	0.54 (−1.16 to 2.24)	0.76 (−0.99 to 2.52)	0.99 (−0.72 to 2.71)
Non-poor→poor	0.52 (0.20 to 1.24)	0.43 (−0.46 to 1.33)	0.44 (−0.44 to 1.33)	0.5 (−0.38 to 1.37)	1.5 (0.45 to 2.55)	1.89 (0.65 to 3.13)	1.9 (0.66 to 3.14)	1.99 (0.79 to 3.21)
Never poor	0.86 (0.15 to 1.57)	0.87 (−0.07 to 1.80)	0.72 (−0.22 to 1.65)	0.8 (−0.13 to 1.73)	1.34 (0.30 to 2.38)	1.99 (0.69 to 3.28)	1.88 (0.57 to 3.19)	2.03 (0.75 to 3.31)
Fathers	p=0.42	p=0.44	p=0.45	p=0.47	p=0.43	p=0.43	p=0.42	p=0.39
Always poor	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference
Poor→non-poor	0.8 (−0.25 to 1.85)	0.75 (−0.37 to 1.87)	0.75 (−0.38 to 1.89)	0.74 (−0.41 to 1.88)	1.57 (−0.40 to 3.55)	1.59 (−0.31 to 3.48)	1.63 (−0.29 to 3.55)	1.68 (−0.24 to 3.61)
Non-poor→poor	−0.04 (−0.77 to 0.68)	−0.2 (−1.08 to 0.69)	−0.19 (−1.09 to 0.71)	−0.2 (−1.10 to 0.71)	0.61 (−0.75 to 1.96)	0.31 (−1.18 to 1.80)	0.35 (−1.16 to 1.86)	0.37 (−1.15 to 1.89)
Never poor	0.23 (−0.46 to 0.92)	−0.01 (−0.85 to 0.83)	−0.01 (−0.86 to 0.85)	−0.01 (−0.87 to 0.85)	0.53 (−0.75 to 1.81)	0.35 (−1.07 to 1.77)	0.37 (−1.06 to 1.81)	0.4 (−1.04 to 1.83)

Model 1: anthropometry of the grandmother (weight, height, body mass index (BMI) and age). Model 2: model 1+parental birth weight. Model 3: model 2+parental BMI in 2004.