Another interesting finding related to the overall differences across generations regarding the specific criteria items endorsed by AUD probands and AUD offspring in the first data columns of Tables 1 and 3. One striking finding involved the 4% of AUD probands overall who admitted to tolerance in the prior five years compared to 57% who endorsed tolerance in AUD offspring. A cursory review of tolerance reports over the years in SDPS AUD probands indicated that this variable had been endorsed by AUD probands at age 35 at a rate similar to the current AUD offspring. However, the proportions of probands who reported tolerance in the five years prior to interview decreased steadily with each subsequent interview. The key aspect of the tolerance question used here might be the emphasis on the recent five-year period. It is possible that self-perceived tolerance might be strongest at younger ages when drinking is escalating but might not be as apparent as individuals maintain and decrease the maximum drinks with advancing age. Space constraints do not allow for an expanded examination of the phenomenon of