Table 7. Multiple linear regression of factors (child BMI and maternal classification of child weight status) at 7 and 12 years predicting child BMI at 15 years.

	Unstandardised coefficients		Standardised coefficients
	B	S.e.	Beta	t-value	P-value
(a) 7-Year predictors for children overweight at 7 years(n=50)
Constant	4.0
Child's BMI (7 years)	1.1	0.4	0.5	3.1	0.003
Correct (7 years; yes)	0.3	1.7	0.0	0.2	0.842
(b) 12-Year predictors for children overweight at 12 years(n=87)
Constant	−0.3
Child's BMI (12 years)	1.1	0.1	0.8	9.0	<0.001
Correct (12 years; yes)	−0.2	0.8	0.0	−0.2	0.834

Abbreviations: B, unstandardised regression coefficient; beta, standardised regression coefficient; BMI, body mass index.

^aAccording to UK 1990 growth reference.²