Table 1 presents the descriptive statistics for each of the samples. Each sample has slightly more female than male participants. The mean number of AUD criteria (3.44) in COGA was relatively high, as COGA was primarily ascertained for families with multiple AUD members. COGA participants report a mean of 4.17 for FTND criteria. For other SUD criteria in COGA, there are a substantial number of participants who report non-zero levels of criteria, though criteria counts for cannabis, cocaine, and opioid use disorders are zero-inflated (see Table 1). The mean number of AUD and FTND criteria in the population-based FT12 sample were 1.63 and 2.57, respectively.Table 1Descriptive Statistics for FT12 and COGA samples.SampleNMean/%Median% 0SDMinMaxCOGAFemale759952.84%–––––Age759936.94––14.771291DSM-5 AUD criteria73003.44228.79%3.63011DSM-5 CUD criteria50512.37148.19%3.13011DSM-5 CoUD criteria24043.18050.17%4.13011DSM-5 OUD criteria16632.05062.96%3.51011FTND count37014.12414.02%2.74010FT12Female125154.40%–––––Age124721.94––0.772126DSM-5 AUD criteria12151.63134.57%1.84011FTND count6312.57221.55%2.13010The N reflects those who report lifetime ever use of that substance. All criteria counts limited to individuals who had initiated use of that substance. The % 0 represents the percentage of participants who have initiated use and have no reported criteria.AUD alcohol use disorder, CUD cannabis use disorder, CoUD cocaine use disorder, OUD opioid use disorder, FTND Fagerstrom test for nicotine dependence (limited to those who report ever smoking 100 cigarettes).
