Depression scale scores in 8-17-year-olds: effects of age and gender.

Published

Journal Article

BACKGROUND: The excess of unipolar depression in females emerges in adolescence. However, studies of age effects on depression scale scores have produced divergent estimates of changes from childhood to adolescence. METHOD: We explored possible reasons for this discrepancy in two large, longitudinal samples of twins and singletons aged 8-17. RESULTS: There were no differences between twins and singletons in their scores on the Short Mood and Feelings Questionnaire (SMFQ), a 13-item self-report depression scale. SMFQ scores for boys fell over this age-range, while those for girls fell from age 9 to age 11 and then increased from age 12 to age 17. The mean scores of girls under 12 and those 12 and over differed by only around one-fifth of a standard deviation. However, given the non-normal distribution of the scores, a cut point that selected the upper 6% of scores created the expected female:male ratio of 2:1. CONCLUSIONS: Implications for future research on adolescent depression are discussed.

Full Text

Duke Authors

Cited Authors

  • Angold, A; Erkanli, A; Silberg, J; Eaves, L; Costello, EJ

Published Date

  • November 2002

Published In

Volume / Issue

  • 43 / 8

Start / End Page

  • 1052 - 1063

PubMed ID

  • 12455926

Pubmed Central ID

  • 12455926

International Standard Serial Number (ISSN)

  • 0021-9630

Language

  • eng

Conference Location

  • England