1. Association between the locus of control score at age 8 and smoking and drinking outcomes. 2. Supplementary Tables from Locus of control is associated with tobacco and alcohol consumption in young adults of the Avon Longitudinal Study of Parents and Children

1. Locus of control at age 8 is not associated with smoking and drinking later on in life. 2. Supplementary tables give further information regarding the characteristics of the participants, the association between confounders and outcomes and the results for all models (adjusted and unadjusted) of the regressions presented in the main text.