Table 4. Association of parental education and health indicators with Cito test score (Z-score) (n = 1,531) ^a .

	Crude b	Adjusted for maternal education	Adjusted for paternal education	Adjusted for maternal education and all health indicators	Adjusted for paternal education and all health indicators
	βc (95% CI) c	βc (95% CI) c	βc (95% CI) c	βc (95% CI) c	βc (95% CI) c
Parental education
Maternal education
High (reference)	0			0
Intermediate	-0.37 (-0.47;-0.27)			-0.36 (-0.46;-0.26)
Low	-0.85 (-0.99;-0.70)			-0.82 (-0.97;-0.67)
Paternal education	0				0
High (reference)	-0.40 (-0.50;-0.29)				0.39 (-0.50;-0.28)
Intermediate	-0.78 (-0.92;-0.65)				-0.77 (-0.90;-0.63)
Low
Health indicators
Eczema (no. of years)	0.00 (-0.02;0.02)	-0.00 (-0.02;0.02)	0.00 (-0.02;0.02)	0.00 (-0.02;0.03)	0.01 (-0.02;0.03)
Asthma symptoms (no. of years)	-0.04 (-0.07;-0.01)	-0.03 (-0.06;-0.00)	-0.04 (-0.07;-0.01)	-0.03 (-0.06;0.01)	-0.03 (-0.07;0.00)
Poor general health (no. of years)	-0.03 (-0.08;0.01)	-0.03 (-0.07:0.01)	-0.03 (-0.07:0.01)	-0.01 (-0.06;0.05)	0.00 (-0.05;0.06)
Freq. respiratory infections (no. of years)	-0.04 (-0.08;0.00)	-0.02 (-0.06;0.02)	-0.03 (-0.07;0.01)	0.00 (-0.04;0.04)	-0.01 (-0.05;0.04)
Overweight (no. of years)	-0.06 (-0.10;-0.02)	-0.04 (-0.07;-0.00)	-0.03 (-0.07;0.01)	-0.03 (-0.07;0.00)	-0.02 (-0.06;0.01)
School absence
0 days (reference)	0	0	0	0	0
1–2 days	0.06 (-0.07:0.19)	-0.00 (-0.13;0.12)	0.04 (-0.09;0.16)	-0.00 (-0.13;0.12)	0.03 (-0.09;0.16)
3–5 days	0.05 (-0.08;0.18)	0.03 (-0.10;0.15)	0.02 (-0.11;0.14)	0.04 (-0.09;0.16)	0.02 (-0.10;0.15)
>5 days	-0.18 (-0.35;-0.01)	-0.14 (-0.30;0.02)	-0.18 (-0.34;-0.02)	-0.11 (-0.27;0.05)	-0.16 (-0.32;0.01)

^a Adjusted for the sex of the child

^b crude models, only adjusted for sex of the child

^c 95% confidence intervals of β.