2.3. Study Sample
depression, depressive
Participants were enrolled in a pilot study of a family-based depression prevention intervention between 1989 and 1992 (n = 20 families, 61 individuals), or in a NIMH-funded randomized controlled trial of the same intervention between 1992 and 1996 (n = 85 families, 267 individuals). At enrollment, families included (1) at least one child between the ages of 8 and 15 that was never treated for a depressive episode and (2) at least one parent that had experienced a depressive episode in the past 18 months. Detailed inclusion and exclusion criteria have been reported previously [For the purposes of these analyses, participants from both the pilot and the NIMH-funded samples were combined to form the total sample of 105 families with 328 individuals. Through the sixth assessment point, 91 (87%) families with 273 individuals in the total sample were retained, and, at T8, 72 (69%) families representing 200 individuals remained in the study (Overall, n = 78 children and n = 74 parents completed the Likert-scale questionnaire—three parents completed the measure twice for a total of n = 77 parent interviews. The parents were assessed, on average, 9.8 years (SD = 1.8) after enrollment and ranged in age from 48 to 62 years (mean = 55.9, SD = 5.5) at this time point. The young adults were assessed on average 8.6 years (SD = 1.9) after enrollment. A total of N = 50 young adults (mean age of 20.5 years, SD = 2.4) completed the qualitative interview (n = 29 in the lecture condition; n = 21 in the clinician-facilitated condition). The interviews were administered between T7 and T12. In thirty-one cases, the mothers had depression, in twelve cases, the father had depression, and in seven cases, both parents had depression. Thirty-six young adults were in school, fourteen were in the workforce and one was in the military. Forty-six of the fifty young adults had at least a high school education, and twenty-five of fifty were involved in community activities.