longer period of time than intended), symptom 2 (more than once tried to cut back on drinking but could not), symptom 8 (more than once got into situations after drinking that increased chances of getting hurt) and 10 (had to drink more to achieve the desired effect). The second-largest class (n = 623, 26%) was characterized by moderate endorsement of the majority of alcohol symptoms coupled with low PTS symptoms. A third class consisted of low alcohol and high PTS symptoms (n = 544, 23%), while the fourth and most severe class (n = 177, 7%) was characterized by uniformly high endorsement of most alcohol and all PTS symptoms.
