1Howard, LM, Ryan, EG, Trevillion, K, Anderson, F, Bick, D, Bye, A, et al. Accuracy of the Whooley questions and the Edinburgh Postnatal Depression Scale in identifying depression and other mental disorders in early pregnancy. Br J Psychiatry 2018; 212: 50–6.
2Snaith, RP, Bridge, GW, Hamilton, M. The Leeds scales for the self-assessment of anxiety and depression. Br J Psychiatry 1976; 128: 156–65.
3Goldberg, DP, Cooper, B, Eastwood, MR, Kedward, HB, Shepherd, M. A standardized psychiatric interview for use in community surveys. Br J Prevent Soc Med 1970; 24: 18.
4Sharp, D. Childbirth Related Emotional Disorders in Primary Care: A Longitudinal Prospective Study. Unpublished PhD thesis, Institute of Psychiatry, King's College London, 1992.
5World Health Organization. International Statistical Classification of Diseases and Related Health Problems (ICD–9). WHO, 1978.
6National Institute for Health and Care Excellence. Antenatal and Postnatal Mental Health: Clinical Management and Service Guidance. NICE Clinical Guideline 45. NICE, 2007.
7National Institute for Health and Care Excellence. Antenatal and Postnatal Mental Health: Clinical Management and Service Guidance. NICE Clinical Guideline 192. NICE, 2014.
8Plant, DT, Pariante, CM, Sharp, D, Pawlby, S. Maternal depression during pregnancy and offspring depression in adulthood: role of child maltreatment. Br J Psychiatry 2015; 207: 213–20.