A public health researcher is conducting a long-term study tracking a group of individuals from age 10 to age 25. The initial data shows that a subset of the group was diagnosed with an attention-related and hyperactive disorder in childhood. Based on established research patterns, which of the following findings would the researcher most likely expect to see in the follow-up data for this subset compared to their peers without the diagnosis?

A public health researcher is analyzing data from a long-term study tracking individuals from childhood to early adulthood. The goal is to identify early life factors that correlate with the development of substance use problems. Based on established research findings, which of the following childhood diagnoses would represent the most significant statistical risk factor for this outcome?