Although many of these estimates are not known with high precision, the general trends are clear. For individuals within 1 to 5 or 6 to 10 years of their first AUD registration, a strong monotonic trend was seen for slopes to increase (that is, demonstrate less confounding) with increasing age. For those 11 or more years past first registration, this trend was largely restricted to the youngest available age group (those 25–29 years for 11–20 years after onset and 30–39 years for those ≥21 years past onset). Finally, within age groups, a general trend was seen for the values of the slopes to increase with increasing years since first AUD registration.
