The Wave 1 NESARC surveyed 43,093 respondents, yielding a response rate of 81% (Grant et al., 2003). Participants in Wave 1 were contacted to be re-interviewed in Wave 2. Excluding ineligible respondents, (e.g., deceased), the response rate for Wave 2 was 86.7%, resulting in 34,653 respondents (Grant et al., 2008). Sample weights are described elsewhere (Grant and Kaplan, 2007) and were developed to adjust for Wave 2 non-response, socio-demographic factors, and the presence of any psychiatric diagnoses in Wave 1. Weighted data were adjusted to be representative of the US civilian population based on estimates from the 2000 census.
