The total N was 11,839 (2005 NAS = 6631; 2010 NAS = 5208), including 4182 male drinkers (N’s = 2841 Whites, 508 Blacks, and 833 Latinos). Although the 2010 NAS included cell phone interviews, these data were excluded because cell surveys did not include key outcomes. Cooperation rates were 56% for the 2005 NAS (53% for the main sample, 63% for the Black oversample, and 70% for the Latino oversample) and 50% for the 2010 NAS when excluding cellphone cases (52% for the main sample and 47% for the racial/ethnic oversamples combined). For more, see Zemore et al. (2013) and Witbrodt et al. (2014).
