DOI: 10.5255/ukda-sn-8179-1
title: National Survey of Sexual Attitudes and Lifestyles, 2010-2012: Biological Data: Secure Access
title: National Survey of Sexual Attitudes and Lifestyles, 2010- : Secure Access
title: NATSAL III; Natsal-3

description: The &lt;i&gt;British National Surveys of Sexual Attitudes and Lifestyles&lt;/i&gt;, or Natsal, are among the largest and most detailed studies of sexual behaviour in the world. Three Natsal surveys have taken place to date: Natsal-1 in 1990-1991 (available from the UK Data Archive under SN 3434), Natsal-2 in 1999-2001 (available under SN 5223) and Natsal-3 in 2010-2012 (available under SN 7799, and for Secure Access versions SN 8178 and SN 8179). Further information is available from the &lt;a class="external" href="http://www.natsal.ac.uk/home.aspx" title="Natsal"&gt;Natsal&lt;/a&gt; website.&lt;br&gt;
 The &lt;i&gt;National Survey of Sexual Attitudes and Lifestyles, 2010-2012&lt;/i&gt; is the third survey in the series. Natsal-3 aimed to provide up-to-date information on key sexual behaviours and risk factors, as well as to look at trends over time by including comparable measures to those used in the previous two surveys, and to include new questions and an extended age range to take account of current information needs in the field of sexual health. &lt;br&gt;
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The main objectives of Natsal-3 were to: &lt;ul&gt;&lt;li&gt;provide a detailed understanding of patterns and variability of sexual behaviour in Britain (including, for example, numbers of sexual partners, frequency of different sexual practices, and homosexual experience) &lt;/li&gt;&lt;li&gt;provide self-reported estimates of a range of sexual and reproductive health outcomes (including, for example, pregnancy, STI diagnosis, contraception use) and health service use&lt;/li&gt;&lt;li&gt;explore sexual behaviour and function over the life-course by including an older age group (up to age 74) &lt;/li&gt;&lt;li&gt;describe changes in sexual activity over time and trends in relationships, reproductive history and patterns of fertility (using Natsal-1, Natsal-2 and Natsal-3) &lt;/li&gt;&lt;li&gt;from urine samples, measure the prevalence of Chlamydia trachomatis, Neisseria gonorrhoeae, type-specific Human Papillomavirus, HIV antibody and Mycoplasma genitalium&lt;/li&gt;&lt;li&gt;measure the gender-specific distribution of salivary testosterone and its relationship to sexual behaviour, function and ageing&lt;/li&gt;&lt;/ul&gt;&lt;b&gt;Secure Access Datasets&lt;/b&gt;&lt;br&gt;
The Natsal-3 Secure Access datasets include additional variables considered too sensitive or disclosive for release under standard End User Licence (EUL) conditions. Additional variables available in the Secure Access studies (SNs 8178 and 8179) include:&lt;ul&gt;&lt;li&gt;detailed geographic variables, including Local Authority Districts and Area Classification for Output Areas Subgroups&lt;/li&gt;&lt;li&gt;respondent month of birth&lt;/li&gt;&lt;li&gt;age when had hysterectomy&lt;/li&gt;&lt;li&gt;month and year of first and most recent sex with partners&lt;/li&gt;&lt;li&gt;outcomes of pregnancies&lt;/li&gt;&lt;li&gt;age at first stillbirth&lt;/li&gt;&lt;li&gt;variables relating to abortions&lt;/li&gt;&lt;li&gt;age at miscarriage, abortion or still birth&lt;/li&gt;&lt;li&gt;month of last pregnancy&lt;/li&gt;&lt;li&gt;genders and month of birth of children&lt;/li&gt;&lt;li&gt;number of children gave birth to in multiple births&lt;/li&gt;&lt;li&gt;ungrouped ethnic group&lt;/li&gt;&lt;li&gt;age when first and last injected non-prescribed drugs&lt;/li&gt;&lt;li&gt;dates (months) relating to live-in partners&lt;/li&gt;&lt;li&gt;qualifications&lt;/li&gt;&lt;li&gt;Indices of Multiple Deprivation&lt;/li&gt;&lt;/ul&gt;This study, SN 8179 (National Survey of Sexual Attitudes and Lifestyles, 2010-2012: Biological Data: Secure Access), includes all the variables listed above, plus variables relating to urine and saliva sample tests, including:&lt;ul&gt;&lt;li&gt;chlamydia&lt;/li&gt;&lt;li&gt;gonorrhoea&lt;/li&gt;&lt;li&gt;Mycoplasma genitalium&lt;/li&gt;&lt;li&gt;HIV&lt;/li&gt;&lt;li&gt;HPV&lt;/li&gt;&lt;li&gt;Trichomonas vaginalis&lt;/li&gt;&lt;li&gt;salivary testosterone level&lt;/li&gt;&lt;/ul&gt;