Conclusion
This in detail review of three
Scandinavian large-scale studies dealing with the influence of hormonal
contraception on the risk of depression development reveals
methodological choices as a likely explanation for the different
findings in the three studies. Further that residual confounding is an
unlikely reason for the divergent results, and that ideological
circumstances might have a main responsibility for the methodological
choices, and the different interpretation of the results in the three
studies.