Table 2A.

Multivariable^* associations between externality and PLE.

Timepoint of PLEs data collection years	11			12			13			14			16			22
	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
ALSPAC
Sample size n	4,190						3,995			3,48			3,019			2,051/1,955
Externality @ 8	1.06	1.02–1.10	0.002				1.08	1.03–1.13	≤0.0001	1.07	1.01–1.11	0.047	1.06	1.00–1.12	0.062	1.04	0.94–1.14	0.471
Externality @ 16																1.26	1.15-1.38	≤0.0001
TTC
Sample size n				2,309						1,878
Externality @ 10				1.12	1.06–1.19	≤0.0001				1.11	1.04–1.18	0.002

Complete cases. Univariable results in Supplementary Table E.

^*Adjusted for sex, IQ at age 8, home ownership status, parental marital status, parental educational level, family income.