Appendix 2

Factor analysis item loadings on the HADS-D and PHQ-9.

HADS-D item loadings (n = 1030)PHQ-9 item loadings (n = 1078)
ItemLoadingItemLoading
Still enjoy0.79Little interest0.71
Laugh0.79Feeling down0.77
Cheerful0.77Trouble sleeping0.61
Slowed down0.63Tired0.65
Appearance0.59Poor appetite0.61
Look forward0.81Feeling bad about self0.67
Enjoy book/radio/TV0.67Trouble concentrating0.68
Slowing0.61
Thoughts of self-harm0.54
  • HADS-D = depression subscale of the Hospital Anxiety and Depression Scale. PHQ-9 = Patient Health Questionnaire.