The Referenced Follow-up Studies and Reviews

• Formalities
• Samples
• References to the Treatment
• The Focus of Follow-Up Studies
• Research Methods
• Treatment Results
• Differential Indication

The comparison of follow-up studies made during 30 years multiplies the methodological problems that already exist in a single follow-up study. This is not the place to start discussion of fundamental questions. It is more important to distill under regard of methodological questions the important information, similarities and contradictions of follow-up studies. Fundamental methodological questions were addressed in a number of the referenced single case studies (for example, Wålinder & Thuwe, 1975; Hunt & Hampson, 1980 a, b; Lothstein, 1981; Lundström, 1981; Sörensen, 1981 a, b; Blanchard et al., 1987; Fahrner et al., 1987; Kuiper & Cohen-Kettenis, 1988; Dudle, 1989; Ross & Need, 1989) and reviews (for example, Pauly, 1981; Lothstein, 1982; Lundström et al., 1984; Abramowitz, 1986; Green & Fleming, 1990). In the discussion of single aspects we will, when necessary, cite them again.

• Formalities
• Samples
• References to the Treatment
• The Focus of Follow-Up Studies
• Research Methods
• Treatment Results
• Differential Indication