Weighting is based on household size followed by poststratification weights. The results are for the period 1993-1994 during which the survey was completed. The poststratification weighting could be made to the population totals or to the totals for the residential population only. Institutions were not sampled directly, nor were group quarters, but depending on the type of group quarters involved, persons may or may not have been included in the sample. For example, some college dormitories have private telephones while others rely on pay telephones in the halls.
Some nursing homes have individual telephones while others have none.
Thus the inclusion of such units in the sample is ambiguous. However, based on the relatively small proportions of the institutional and group quarters in the total state population, the difference in the statewide estimates are relatively small. The importance of institutional and group quarters populations is more important in small area estimates, which will be seen in Chapter 8, where these estimates are handled separately. Statewide Prevalence of Disorders for Adults Table 5.1 presents the statewide estimates for each of the mental health measures for adults for 1993-1994. These are reported with sample size, population total, estimated numbers of cases, and the prevalence as a percentage.