Final answer:
The exact percentage of jail inmates reporting substance addiction or dependence is not provided, but reference materials discuss the significant impact of drug offenses on U.S. incarceration rates, suggesting a substantial portion of inmates may have substance issues.
Step-by-step explanation:
The specific percentage of jail inmates who report substance addiction or dependence is not provided in the reference materials. However, these materials highlight the significant impact that drug offenses have had on the U.S. incarceration rate, particularly since the war on drugs in the 1980s. With a dramatic increase in incarceration rates during this period, it is implied that a substantial portion of inmates may be in jail due to drug-related offenses, which could be associated with substance addiction or dependence issues. This is particularly noticeable in the context of racial inequities, where African Americans are much more likely to be in prison, and in the light of health disparities reported in drug- and alcohol-use disorders among youths after detention. To get the specific percentage, it would be required to review studies focused on health disparities in drug- and alcohol-use disorders in the incarcerated population, such as the study by Welty et al. (2016).