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Consistency in reporting sensitive sexual behaviours in Britain: change in reporting bias in the second and third National Surveys of Sexual Attitudes and Lifestyles (Natsal-2 and Natsal-3)
  1. Philip Prah1,
  2. Andrew J Copas1,
  3. Catherine H Mercer1,
  4. Soazig Clifton1,2,
  5. Bob Erens1,3,
  6. Andrew Phelps2,
  7. Clare Tanton1,
  8. Pam Sonnenberg1,
  9. Wendy Macdowall4,
  10. Kaye Wellings4,
  11. Anne M Johnson1
  1. 1Research Department of Infection and Population Health, University College London, Mortimer Market Centre, London, UK
  2. 2NatCen Social Research, London, UK
  3. 3Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
  4. 4Department of Social and Environmental Health Research, London School of Hygiene and Tropical Medicine, London, UK
  1. Correspondence to Dr Catherine Mercer, UCL Centre for Sexual Health and HIV Research, 3rd floor Mortimer Market Centre, off Capper Street, London, WC1E 6JB, UK; c.mercer{at}ucl.ac.uk

Abstract

Objectives Britain's second National Survey of Sexual Attitudes and Lifestyles (Natsal-2) was conducted in 1999–2001 and the third (Natsal-3) was conducted in 2010–2012 to update prevalence estimates of sexual behaviours and assess changes over time. We investigated whether there was a change in reporting bias between these two cross-sectional surveys.

Methods We analysed data from the ‘common birth cohort’ of participants born during 1956–1983, who were eligible to take part in Natsal-2 (n=10 764) and Natsal-3 (n=6907). We compared estimates for outcomes that occurred before Natsal-2 and expected these to be consistent between surveys if no change in reporting bias had occurred.

Results A greater proportion of non-white men and women were in Natsal-3 consistent with demographic changes in Britain. Reporting behaviours was largely consistent between surveys for men. Fewer women in Natsal-3 reported early first intercourse or having child(ren) before age 20; they were also more likely to report not discussing sex with their parents at age 14. Men and women in Natsal-3 were more likely to report tolerant attitudes towards same-sex partnerships but less tolerance towards unfaithfulness in marriage and one-night-stands.

Conclusions We found little evidence of change in reporting bias among men since Natsal-2. Among women, a modest change in reporting bias was observed for a small number of experiences, possibly due to changes in participation, social acceptability and methodological differences between surveys. Changes in the reporting of sexual behaviours and attitudes over time observed in the wider Natsal-3 study are therefore likely to largely reflect real changes in the population.

  • Epidemiology (General)
  • Sexual Behaviour
  • Statistics

This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 3.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/3.0/

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Linked Articles

  • Editorial
    Catherine H Mercer Kaye Wellings Anne M Johnson
  • National Survey of Sexual Attitudes and Lifestyles (Natsal-3)
    Bob Erens Andrew Phelps Soazig Clifton Catherine H Mercer Clare Tanton David Hussey Pam Sonnenberg Wendy Macdowall Nigel Field Jessica Datta Kirstin Mitchell Andrew J Copas Kaye Wellings Anne M Johnson