Intended for healthcare professionals

Letters Sexual behaviour

Engage with the next wave of Britain’s National Survey of Sexual Attitudes and Lifestyles

BMJ 2019; 366 doi: (Published 26 July 2019) Cite this as: BMJ 2019;366:l4721
  1. Catherine H Mercer, professor of sexual health science1,
  2. Pam Sonnenberg, professor of infectious disease epidemiology1,
  3. Melvina Woode-Owusu, Natsal project manager1,
  4. Soazig Clifton, Natsal academic director2,
  5. Mary-Clare Ridge, Natsal project coordinator1
  6. on behalf of the Natsal team at University College London, London School of Hygiene and Tropical Medicine, University of Glasgow, NatCen Social Research, Wellcome Trust Sanger Institute, the WHO Collaborating Centre for Gonorrhoea and Other STIs, and Örebro University
  1. 1Centre for Population Research in Sexual Health and HIV, University College London, Mortimer Market Centre, off Capper Street, London WC1E 6JB, UK
  2. 2NatCen Social Research, London EC1V 0AX, UK
  1. c.mercer{at}

Poor sexual and reproductive health causes major morbidity. Sexually transmitted infection diagnoses continue to rise;1 teenage pregnancy rates, although falling,2 remain among the highest in Europe; and societal acknowledgment of the extent and consequences of sexual violence has shifted.3The BMJ recently published the latest output from Britain’s National Surveys of Sexual Attitudes and Lifestyles (Natsal), which investigated changes in, and factors associated with, the frequency of sex in Britain, …

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