Changes in, and factors associated with, frequency of sex in Britain: evidence from three National Surveys of Sexual Attitudes and Lifestyles (Natsal)

Factors associated with lifetime use of commercial sex work services among Japanese men aged 20-49: findings from a quasi-representative national survey, 2022

OBJECTIVES

Approximately half of Japanese men aged 20-49 years have purchased sexual services, but data concerning the use of commercial sex work (CSW) in Japan remain scarce.

METHODS

We used online survey data from the National Inventory of Japanese Sexual Behavior conducted in 2022 (N=4000 Japanese men aged 20-49 years). We calculated the median number of paid sexual partners over the lifetime. We performed logistic regression analysis to determine the sociodemographic, anthropometric and attitudinal factors associated with any lifetime CSW use among men in Japan.

RESULTS

The median number of paid sexual partners reported among men who had ever used CSW was 6 (IQR 3-17) across the lifetime; the corresponding value for those who had ever used CSW in the past year was 2 (IQR 1-4) over the last 12 months. In general, those reporting lifetime use of CSW were significantly more likely than their CSW-naïve counterparts to be older, be married, be heterosexual or bisexual, have higher income and have higher education. Those reporting higher self-rated attractiveness, high or low satisfaction with their sex lives, a desire to increase their frequency of sex and considering sex to be an important aspect of their lives were also found to have a higher likelihood of having used CSW.

CONCLUSIONS

High rates of CSW use in Japan likely reflect ease of access, low stigma with respect to use of sexual services and the diversity in the type of services offered. High-income, employed older men have more financial resources at their disposal to purchase services, which can be cost-prohibitive for part-time or unemployed young men with low incomes. These findings will serve as a launchpad for public health efforts directed at promoting safe sexual practices and improved sexually transmitted infection screening rates among users of CSW in Japan.

Why College Women and Men Refrain from Sex Despite Desire: Development of the No Sex Despite Desire (NSDD) Measure

Humans have sex for myriad reasons, many unrelated to desire. But under what conditions does sexual desire not lead to sex? We investigated reasons college students refrain from sex despite desire and having an attractive, willing partner and relationships between these reasons and other aspects of sexuality and personality. For item generation, 604 participants identified 109 reasons why individuals may refrain from sex despite desire. For construct validation, 712 participants reported the frequency they experienced these reasons on a novel measure. Every reason evidencing discernible gender differences was endorsed more by women. These items largely concentrated in factors of Personal Insecurities and Principled Concerns. No gender differences emerged on the Partner Issues factor. Factors differentially related to sexuality and personality variables. Principled Concerns related negatively to sociosexual behavior and attitudes and positively to sexual traditionalism across genders. Partner Issues positively correlated with sociosexual behavior and desire for women. Personal Insecurities negatively correlated with sociosexual attitudes for men. Principled Concerns related to sexual functioning issues for women. Personal Insecurities and Principled Concerns related to worse sexual functioning for men. Personal Insecurities related to Neuroticism across genders. These results suggest potential directions for therapeutic interventions and further research.

Sexual Behaviors among Individuals Aged 20-49 in Japan: Initial Findings from a Quasi-Representative National Survey, 2022

Nationally representative data on sexual health and behaviors in Japan are scarce. We conducted an online survey, including questions about a range of topics related to sexual behaviors and outcomes. The sample, including 8000 men and women aged 20-49 years in Japan, was stratified by sex and weighted with respect to age, marital status, and region of residence to reflect the population of Japan. Of the women, 82.9% and 10.0% reported that they were heterosexual and asexual, respectively; corresponding proportions for men were 87.4% and 6.9%. 15.3% of women and 19.8% of men reported never having had any partners with whom they engaged in vaginal, anal, or oral sex. 45.3% of women and 44.5% of men reported not having had any sexual partners during the past year; this proportion was highest among women aged 40-49 years (51.7%) and men aged 20-29 years (55.1%). The proportion of those reporting satisfaction with their sex life was 27.8% for women and 23.1% for men; 17.6% of women and 27.1% of men reported dissatisfaction. Pornography use of ≥3 times per week was most common among those aged 20-29 years (6.5% of women; 34.8% of men), and the frequency of pornography use decreased slightly with age. 4.0% of women and 48.3% of men reported ever having used commercial sex worker services in their lifetime. This survey-based study provides data on sexual behaviors and health outcomes in Japan. Compared to other high-income countries, levels of sexual inexperience and inactivity seem to be high in Japan.

"We're Just Tired": Influences on Sexual Activity Among Male-Partnered Women in Midlife; A Mixed Method Study

Studies into decline in sexual activity among women in midlife produce equivocal findings, some implicating hormonal and physiological changes, others psycho-social and environmental factors. Women's perspectives rarely inform interpretation of the data. Associations between sexual satisfaction, activity and function, and health and lifestyle factors were explored using data from 2133 female participants in the third British National Survey of Sexual Attitudes and Lifestyles (2010-2012). Semi-structured interviews (2012-2015) with 23 women aged 45-59 reporting sexual dissatisfaction in Natsal-3 explored their perceptions of the influences on their sexual activity. Analysis of the survey data showed sexual dissatisfaction to be less common than low frequency and function. Neither menopausal stage nor age was independently associated with any of the dimensions of sexual experience. Only relationship unhappiness was independently associated with all three and communicational difficulty with two (dissatisfaction and lower function). In-depth interviews identified influences on sexual activity not captured in the survey. Tiredness attributed to contemporary challenges of midlife was a dominant theme. Relationship quality mediated its adverse impact. Sexual experience in midlife must be interpreted in light of both life-stage and era, notably, the increasing demands on women in contemporary society and their impact on vitality. Efforts to address sexual wellbeing should take account of the wider social context.

Clinical Significance of a Pain Scoring System for Deep Endometriosis by Pelvic Examination: Pain Score

Endometriosis-associated pain is an essential factor in deciding surgical indications of endometriosis. However, there is no quantitative method to diagnose the intensity of local pain in endometriosis (especially deep endometriosis). This study aims to examine the clinical significance of the pain score, a preoperative diagnostic scoring system for endometriotic pain that can be performed only with pelvic examination, devised for the above purpose. The data from 131 patients from a previous study were included and evaluated using the pain score. This score measures the pain intensity in each of the seven areas of the uterus and its surroundings via a pelvic examination using a numeric rating scale (NRS) which contains 10 points. The maximum value was then defined as the max pain score. This study investigated the relationship between the pain score and clinical symptoms of endometriosis or endometriotic lesions related to deep endometriosis. The preoperative max pain score was 5.93 ± 2.6, which significantly decreased to 3.08 ± 2.0 postoperatively (p = 7.70 × 10^-20). Regarding preoperative pain scores for each area, those of the uterine cervix, pouch of Douglas, and left and right uterosacral ligament areas were high (4.52, 4.04, 3.75, and 3.63, respectively). All scores decreased significantly after surgery (2.02, 1.88, 1.75, and 1.75, respectively). The correlations between the max pain score and dysmenorrhea, dyspareunia, perimenstrual dyschezia (pain with defecation), and chronic pelvic pain were 0.329, 0.453, 0.253, and 0.239, respectively, and were strongest with dyspareunia. Regarding the pain score of each area, the combination of the pain score of the pouch of Douglas area and the VAS score of dyspareunia showed the strongest correlation (0.379). The max pain score in the group with deep endometriosis (endometrial nodules) was 7.07 ± 2.4, which was significantly higher than the 4.97 ± 2.3 score obtained in the group without (p = 1.71 × 10^-6). The pain score can indicate the intensity of endometriotic pain, especially dyspareunia. A local high value of this score could suggest the presence of deep endometriosis, depicted as endometriotic nodules at that site. Therefore, this method could help develop surgical strategies for deep endometriosis.

Masturbation Prevalence, Frequency, Reasons, and Associations with Partnered Sex in the Midst of the COVID-19 Pandemic: Findings from a U.S. Nationally Representative Survey

Despite well-documented individual, relational, and health benefits, masturbation has been stigmatized and is understudied compared to partnered sex. In a US nationally representative survey of adults, we aimed to: (1) assess the prevalence and frequency of participants' prior-year masturbation, (2) describe reasons people give for not masturbating, (3) describe reasons people give for masturbating, and (4) examine the association between masturbation frequency and actual/desired partnered sex frequency in the prior year. Significantly more men than women reported lifetime masturbation, past month masturbation, and greater masturbation frequency. The most frequently endorsed reasons for masturbating related to pleasure, feeling "horny," stress relief, and relaxation. The most frequently endorsed reasons for not masturbating were lack of interest, being in a committed relationship, conflict with morals or values, or being against one's religion. Among women, those who desired partnered sex much more often and a little more often were 3.89 times (95% CI: 2.98, 5.08) and 2.07 times (95% CI: 1.63, 2.62), respectively, more likely to report higher frequencies of past-year masturbation than those who desired no change in their partnered sex frequency. Among men, those who desired partnered sex much more often and a little more often were 4.40 times (95% CI: 3.41, 5.68) and 2.37 times (95% CI: 1.84, 3.06), respectively, more likely to report higher frequencies of past-year masturbation activity than those who reported that they desired no change in their current partnered sex frequency. Findings provide contemporary U.S. population-level data on patterns of adult masturbation.

Sexual Repertoire, Duration of Partnered Sex, Sexual Pleasure, and Orgasm: Findings from a US Nationally Representative Survey of Adults

In a confidential U.S. nationally representative survey of 2,525 adults (1300 women, 1225 men), we examined participants' event-level sexual behaviors, predictors of pleasure and orgasm, and perceived actual and ideal duration of sex, by gender and age. Event-level kissing, cuddling, vaginal intercourse, and oral sex were prevalent. Sexual choking was more prevalent among adults under 40. While women and men reported a similar actual duration of sex, men reported a longer ideal duration. Participants with same-sex partners reported a longer ideal duration than those with other-sex partners. Finally, findings show that gendered sexual inequities related to pleasure and orgasm persist.

Living without Partnered Sex in Germany. Results From the First Representative, Population-based German Health and Sexuality Survey (GeSiD)

Broader insights into the life situations of sexually inactive adults in Germany are widely unexplored. Within the nationally-representative survey GeSiD (German Health and Sexuality Survey), undertaken 2018-2019, data of 4,758 participants with lifetime interpersonal sexual experience aged 18-75 years (men: n = 2234; women: n = 2524) were analyzed in regards to partnered sexual inactivity in the past 12 months (PSI; no genital-involving sexual contact with another person). Overall, advanced age, being single and impaired health conditions were associated with PSI. Data showed gender-specific associations with PSI, such as less alcohol, smoking and drug use in women. PSI was associated with lower general life satisfaction throughout different age groups.

Relationships between Penile-Vaginal Intercourse Frequency and Condom/Contraceptive Use from 2009 to 2018: Findings from the National Survey of Sexual Health and Behavior

Objectives

To examine changes over time in event-level condom/contraceptive use and the association between past year penile-vaginal intercourse frequency and event-level condom/contraceptive use.

Methods

Data were from the 2009 and 2018 National Survey of Sexual Health and Behavior, an online probability survey of U.S. adolescents and adults.

Results

Use of condoms and highly effective hormonal contraceptives decreased while long-acting reversible contraceptive use increased from 2009 to 2018 among adults. Increased penile-vaginal intercourse frequency was associated with decreased use of most contraceptive methods but an increase in condom use for adolescents.

Conclusions

Sexual frequency should be considered when assessing condom/contraceptive use.

Factors influencing intercourse frequency among the young and middle-aged men

OBJECTIVES

At present, there are few studies on the sexual activity of young and middle-aged men in China. This study aims to explore the factors that affect the frequency of intercourse among young and middle-aged men in China.

METHODS

Data for 923 men aged 20-60 years were collected in the Health Management Center, Third Xiangya Hospital, Central South University from January 2019 to March 2019, and a questionnaire survey (including basic conditions and sexual function-related scales) was carried out in the subjects. Finally, the data were analyzed by multivariate logistic regression analysis.

RESULTS

The age ( P <0.01), number of children ( P <0.01), total cholesterol ( P <0.05), low-density lipoprotein ( P <0.05), erectile function ( P <0.01) and premature ejaculation ( P <0.05) was significantly correlated with the frequency of intercourse in the young and middle-aged men in China.

CONCLUSIONS

The sexual frequency in the middle-young men in China is closely related to factors such as age, number of children, total cholesterol, low-density lipoprotein, and sex function.

Achieving proportional representation in a reproductive health survey through social media: process and recommendations

BACKGROUND

The narrative surrounding women's reproductive health has shifted from a medical model to an emphasis on reproductive well-being over different life-stages. We developed and piloted a tracker survey for monitoring women's reproductive health and well-being in England, recruiting respondents online. This paper reports on the success of the online recruitment strategies in achieving a sample proportionally representative of the England general population.

METHODS

Recruitment was through Facebook and Instagram advertisements and dissemination through Twitter and a blog. At the end week one, the sample was reviewed and compared to the 2011 Census England population. From week two, recruitment targeted under-represented groups. Key data were compared with prevalence estimates from the Third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).

RESULTS

Between 1 July-17 August 2021, 13,962 people initiated the online survey, with 11,578 completing it. Numbers were low initially, but peaked at 1700 survey initiations per day after increasing the daily advertisement budget on day seven. At the end of week one, minority ethnic groups and people without a degree or equivalent were under-represented. From week two, we altered the advertisement settings to show to people whose profile indicated they were a 'high school leaver' had 'up to some high school', worked in industries that do not typically require a degree or lived in local authorities with a high proportion of ethnic minority residents. This had a modest effect, with the final sample short of proportional representation in terms of ethnicity and education but close in terms of region and age. Compared to Natsal-3, we found consistency in the proportion of respondents reporting an abortion and a live birth in the last year, however, the proportion of our sample reporting ever having experienced infertility was significantly higher than in Natsal-3, as was the proportion of 'planned' pregnancies in the last year.

CONCLUSIONS

It is possible to recruit large numbers of respondents online, relatively quickly, to complete a reproductive health survey. This will be valuable to track reproductive health and well-being at a national level over time. More work is needed to understand reasons for non-response among under-represented groups.

Changes in Penile-Vaginal Intercourse Frequency and Sexual Repertoire from 2009 to 2018: Findings from the National Survey of Sexual Health and Behavior

Solo and partnered sexual behaviors are relevant to health, well-being, and relationships. Recent research shows that sexual frequency has declined in the U.S. and in other countries; however, measurement has been imprecise. We used data from 14- to 49-year-old participants in the 2009 and 2018 waves of the National Survey of Sexual Health and Behavior (NSSHB), a confidential U.S. nationally representative survey that is conducted online. We aimed to: (1) assess changes in frequency of past-year penile-vaginal intercourse and (2) examine combinations of past-year sexual behaviors for each of the two waves. We hypothesized that we would observe lower frequency of penile-vaginal intercourse (PVI) from 2009 to 2018 and that we would observe greater engagement in sexual repertoires involving non-coital partnered behaviors (e.g., partnered masturbation, oral sex) in 2018 as compared to 2009. Participants were 4155 individuals from the 2009 NSSHB (Adolescents: 406 females, 414 males; Adults: 1591 women, 1744 men) and 4547 individuals from the 2018 NSSHB (Adolescents: 416 females, 411 males; Adults: 2007 women, 1713 men). Compared to adult participants in the 2009 NSSHB, adults in the 2018 NSSHB were significantly more likely to report no PVI in the prior year (28% in 2018 vs. 24% in 2009). A similar difference in proportions reporting no PVI in the prior year was observed among 14-17-year-old adolescents (89% in 2018 vs. 79% in 2009). Additionally, for both adolescents and adults, we observed decreases in all modes of partnered sex queried and, for adolescents, decreases in solo masturbation.

Was it Good for You? Gender Differences in Motives and Emotional Outcomes Following Casual Sex

Casual sex, also referred to as a hookup, has been associated with a range of negative emotional outcomes for women, including regret, anxiety, depression and social stigma. However, it has been argued that it is the nature of the sexual motivation, not gender that influences the emotional outcome. This study was designed to ascertain what motivates people to have casual sex, what emotional outcomes follow casual sex and whether there are gender differences among these variables. Seven hundred and one participants (47% men and 52.8% women) completed a 44-item online survey. Gender differences were found for both sexual motivations and emotional outcomes of casual sex, with women generally having more negative emotional outcomes than men. Additionally, a principal components analysis uncovered four reliable principal motivations underlying engagement in casual sex, and three principal emotional outcomes of casual sex. Predictors of negative emotional outcomes included being motivated to regulate negative emotions and to achieve positive emotions. No predictors (apart from being a man) were found for a positive emotional outcome. While the stigma surrounding female sexual agency is diminishing, results generally support the presence of a sexual double-standard which encourages male promiscuity but dissuades female sexual autonomy.

Changes in sexual behaviour, anxiety symptoms, and quality of couple relationship of patients with infertility during the COVID-19 lockdown

Purpose

This study aimed to explore the perceived changes in sexual behaviour during COVID-19 lockdown, anxiety symptoms, and couple relationship of patients with infertility.

Methods

We performed an observational cross-sectional study between 20 November 2020 and 15 January 2021. We used stratified analysis of different stress levels and Quality of Marriage Index (QMI) scores to compare the perceived changes in sexual behaviour, anxiety symptoms, and couple relationship. The logistic regression model was performed to assess factors correlated with couples’ relationship quality during the lockdown. Furthermore, we performed pathway analyses to assess whether the changes in sexual behaviour, stress level, or psychological anxiety during the lockdown could predict the quality of couple relationship.

Results

A total of 940 patients with infertility were included in this study. When we conducted a stratified analysis of the participants, significant differences were found between the changes in their sexual behaviour, stress levels, and couple relationship quality. The logistic regression model showed that sex, anxiety symptoms, decreased sexual satisfaction, sexual activity frequency, and income levels were closely related to couple relationship quality. Pathway analyses indicated that changes in their sexual behaviour, anxiety symptoms, and stress levels could all predict the quality of couple relationship.

Conclusions

The perceived changes in sexual behaviour with different stress levels and couple relationship quality showed significant differences. Analysing the related factors that affect the quality of couple relationship, especially in times of crisis, is of great significance as this information can contribute to the improvement of treatment for patients with infertility.

Supplementary Information

The online version contains supplementary material available at 10.1007/s10815-021-02361-4.

[Sexual behavior and prevention of sexually transmitted infections taking the SARS-CoV-2 pandemic into account. Data from a sexual healthcare and medicine center-WIR]

Hintergrund

Anwendungsbezogene Daten zu sexueller Gesundheit und sexuellem Verhalten in unterschiedlich sexuell aktiven Populationen stehen nur begrenzt zur Verfügung, sind aber für Präventions- und Versorgungsstrategien sehr relevant. Das multisektorale Versorgungszentrum WIR – Walk In Ruhr hat aufgrund seiner Besucher*innenstruktur Zugang zu Daten aus diversen Lebenswelten.

Ziel der Arbeit

Aus verschiedenen WIR-internen Datenquellen sollen populationsbezogene Erkenntnisse zu Alter, Geschlecht, sexueller Orientierung, Sexual- und Risikoverhalten gewonnen und Bedarfe für Prävention abgeleitet werden. Einflüsse der SARS-CoV-2-Pandemie auf das Sexualverhalten sollen durch den Vergleich verschiedener Zeiträume untersucht werden.

Methoden

Ausgewertete Datenquellen sind der Onlinerisikotest für HIV und STI, die COWIR- und PrEP-Studie sowie die Immunologische Ambulanz und das Gesundheitsamt im WIR.

Ergebnis

Sexuell übertragbare Infektionen (STI) sind von 2019 auf 2020 trotz Kontaktbeschränkungen gestiegen. Generell haben junge Menschen, Männer, die Sex mit Männern, und Frauen, die Sex mit Frauen haben, ein erhöhtes STI-Risiko aufgrund der gewählten Sexualpraktiken und der Anzahl sexueller Kontakte. Eine hohe Zahl bi- und transsexueller Kontakte ist festzustellen. SARS-CoV‑2 führte zu einer Reduzierung der Sexualkontakte. Sexualpraktiken wurden weiter gelebt. Die STI-Testquote und die Behandlungsrate stiegen an.

Diskussion

Die Daten aus dem WIR belegen, dass eine junge Klientel mit aktivem Sexualleben erreicht wird. Die Ergebnisse aus Fragebögen und dem Onlinerisikotest zeigen den Zusammenhang von erhöhten positiven STI-Tests mit Sexualverhalten und sexuellen Präferenzen, weshalb spezifische Strategien zu Sexualaufklärung, Prävention, Tests und Therapien erforderlich sind.

Italians do it … less. COVID-19 lockdown impact on sexual activity: Evidence from a large representative sample of Italian adults

Background

To explore how sexual activity was impacted by coronavirus disease 2019 (COVID-19) lockdown measures in the general adult population.

Methods

A cross-sectional survey was conducted among 6,003 Italian adults aged 18–74 years who were representative of the Italian general population. Study subjects were recruited at the time of the nationwide stay-at-home order (from April 27 to May 3, 2020). We identified characteristics associated with decreased frequency of sex during lockdown, differentiating between cohabiting and non-cohabiting subjects.

Results

Over one-third (35.3%) of Italians reported to have changed their sexual activity during lockdown (8.4% increased and 26.9% decreased). When focusing on cohabitants (N = 3,949, 65.8%), decreased sexual activity (20.7%) was more frequently reported by men (22.3%; compared to women, multivariable odds ratio 1.23; 95% confidence interval, 1.05–1.44), younger subjects (P for trend <0.001), more educated subjects (P for trend = 0.004), subjects living in smaller houses (P for trend = 0.003), and those reporting longer time spent outdoors before the lockdown (P for trend <0.001).

Conclusions

COVID-19 lockdown drastically altered people’s day-to-day life and is likely to have impacted lifestyle habits and behavioral risk factors, including sexual attitudes and practice. This is the first national population-level study exploring changes in sexual life in this COVID-19 era. As we report sexual practice to have been affected by lockdown restrictions, we suggest that the mental health, social, and other determinants of these changes are to be explored beyond imposed social distancing.

Understanding the Associations of Prenatal Androgen Exposure on Sleep Physiology, Circadian Proteins, Anthropometric Parameters, Hormonal Factors, Quality of Life, and Sex Among Healthy Young Adults: Protocol for an International, Multicenter Study

Background

The ratio of the second finger length to the fourth finger length (2D:4D ratio) is considered to be negatively correlated with prenatal androgen exposure (PAE) and positively correlated with prenatal estrogen. Coincidentally, various brain regions are sensitive to PAE, and their functions in adults may be influenced by the prenatal actions of sex hormones.

Objective

This study aims to assess the relationship between PAE (indicated by the 2D:4D ratio) and various physiological (sex hormone levels and sleep-wake parameters), psychological (mental health), and sexual parameters in healthy young adults.

Methods

This study consists of two phases. In phase 1, we will conduct a survey-based study and anthropometric assessments (including 2D:4D ratio and BMI) in healthy young adults. Using validated questionnaires, we will collect self-reported data on sleep quality, sexual function, sleep chronotype, anxiety, and depressive symptoms. In phase 2, a subsample of phase 1 will undergo polysomnography and physiological and genetic assessments. Sleep architecture data will be obtained using portable polysomnography. The levels of testosterone, estradiol, progesterone, luteinizing hormone, follicle-stimulating hormone, prolactin, melatonin, and circadian regulatory proteins (circadian locomotor output cycles kaput [CLOCK], timeless [TIM], and period [PER]) and the expression levels of some miRNAs will be measured using blood samples. The rest and activity cycle will be monitored using actigraphy for a 7-day period.

Results

In Poland, 720 participants were recruited for phase 1. Among these, 140 completed anthropometric measurements. In addition, 25 participants joined and completed phase 2 data collection. Recruitment from other sites will follow.

Conclusions

Findings from our study may help to better understand the plausible role of PAE in sleep physiology, mental health, and sexual quality of life in young adults.

International Registered Report Identifier (IRRID)

DERR1-10.2196/29199

Comparing the Self-Reported Health, Happiness, and Marital Happiness of a Multinational Sample of Consensually Non-Monogamous Adults with Those of the U.S. General Population: Additional Comparisons by Gender, Number of Sexual Partners, Frequency of Sex, and Marital Status

The primary objective of this cross-sectional study was to examine the associations of self-reported health, happiness, marital happiness, frequency of sexual activity, and number of partners from a multinational survey of individuals who are consensually non-monogamous (CNM) or open to being CNM, completed in 2012 with 4062 respondents. We compared data from this survey with the 2010-2014 US General Social Surveys (GSS). This study explored these variables and their predictors by gender (including 612 non-binary-gendered CNM individuals), marital status, number of partners, sexual frequency, age, education, and income and were broken down by behavioral sexual orientation, marital status, and other relevant categories. Respondents in our CNM sample generally reported being as healthy (sometimes healthier; e.g., all respondents M-W Z = 7.66, p < .001, η² = 0.007), happy (frequently happier; e.g., multiple-partnered Z = 15.43, p < .001, η² = 0.069), happy in their marriages (in some cases happier; e.g., multiple-partnered females Z = 2.61, p = .009, η² = 0.067), and reported having more frequent sexual activity (e.g., all Z = 29.54, p < .001, η² = 0.094) with more partners (e.g., all Z = 60.75, p < .001, η² = 0.393) compared to corresponding individuals within the GSS. This study contributes to knowledge about commonalities and differences between the general population and those who are CNM regarding health, happiness, and happiness in marriage, including differences in optimal number of sexual partners and sexual frequency.

COVID-19 Confinement and Sexual Activity in Spain: A Cross-Sectional Study

Restrictions of free movement have been proven effective in tackling the spread of COVID-19 disease. However, sensitive populations submitted to longer periods of restrictions may experience detrimental effects in significant areas of their lifestyle, such as sexual activity. This study examines sexual activity during the COVID-19 confinement in Spain. A survey distributed through an institutional social media profile served to collect data, whereas chi-squared tests, t-tests, analyses of variance, and multiple logistic regression analysis were used to assess differences among sample subgroups. A total of 71.3% adults (N = 536) (72.8% female) reported engaging in sexual activity with a weekly average of 2.39 times (SD = 1.80), with significant differences favoring males, middle age, married/in a domestic relationship (p < 0.001), employed (p < 0.005), medium–high annual household income, living outside the Iberian Peninsula, and smoking and alcohol consumption. Analyses adjusted for the complete set of control variables showed significant odds for a lower prevalence of weekly sexual activity in women (OR = 0.44, 95% CI 0.27–0.72). Interventions to promote sexual activity in confined Spanish adults may focus on groups with lower sexual activity.

Understanding the decline in under-18 conception rates throughout England's local authorities between 1998 and 2017

We consider England's two-decade teenage conception decline in the context of societal changes: rising educational aspirations; growing second- and third-generation teenage ethnic minority populations; increased deprivation associated with economic recession and post-2008 Government austerity; and changing housing availability. Using England's Local Authority Districts (LAD) 1998-2017, we explore the role of area characteristics in explaining spatial differences in under-18 conception rates and how changing characteristics may explain temporal changes. Urban/rural distinctions in teenage conceptions are largely minimised after considering LAD characteristics. Area characteristics continue to partly explain teenage conception rates but are better at explaining area differences than variation over time.

Comparison of Self-Reported Sexual Activity Among Heterosexuals with Sexual Spread of Poorly Transmittable Agents: A Minimalistic Approach to Estimating Sexual Activity Based on HIV Incidence

The aim of this study was to assess whether epidemics of sexually transmitted infections caused by poorly transmittable agents corresponded to self-reported sexual activity in a distinct population. To exemplify this, a model was used to investigate whether HIV infection incidences corresponded to the extent of sexual activity as assessed by a questionnaire-based study. The model suggested between 97 and 486 sexual contacts per German individual during a sexually active lifetime based on the annual HIV incidence of 680 among the heterosexual population reported by the German National Health Authority. This is in line with the estimated 296 sexual contacts during one's lifetime, which was indicated by questionnaire respondents. The model confirms the correspondence of self-reported sexual activity with HIV incidence as reported by the German National Health Authority. Accordingly, HIV incidence- and prevalence-based modeling of sexual activity in a population provides crude estimations in situations where a range of uncertainty is acceptable. The model's veracity is limited by a number of assumptions necessitated by the paucity of data. Nevertheless, the model may be suitable in settings where severe reporting bias has to be expected for legal or socio-cultural reasons.

Chronic sleep deprivation prolongs the reduction of sexual behaviour associated with daily sexual encounter in male rats

Chronic sleep deprivation (CSD) is common in many societies. Consecutive sleep loss increases allostatic load, which is known to negatively affect health outcomes. We investigated the impact of CSD on male sexual behaviour. Sexually-experienced male Long-Evans rats (singly housed under 14:10 light:dark) were either subjected to CSD or no CSD for 7 days, followed by a 7-day sleep recovery (SR) period. Their sexual behaviours were tested daily during both periods. CSD was performed by a 'gentle-handling' protocol for 4 hours per day, at the end of the light phase. Daily sexual behaviour tests led to a change in sexual behaviour over time. Intromission and ejaculation frequencies declined with repeated testing, but the reduction in these behaviours lasted for a longer period in rats that were previously subjected to CSD. Ejaculation latency was significantly longer towards the end of the recovery period in rats that had undergone CSD, but not in the control group. Post-ejaculatory interval increased and mounting behaviour did not change with daily mating tests, regardless of sleep deprivation protocol. CSD prolongs the decline in sexual behaviours associated with daily sexual encounters in male rats, and thus the return to baseline for these parameters requires days.

Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018

IMPORTANCE

Sexual relationships are important for well-being and health. Recent trends in sexual activity among US adults are unknown.

OBJECTIVES

To examine trends in reported frequency of sexual activity and number of sexual partners by sex and age and the association between measures of sexual activity and sociodemographic variables.

DESIGN, SETTING, AND PARTICIPANTS

In this survey study, repeat, cross-sectional analyses of participants aged 18 to 44 years from 10 rounds of the General Social Survey (2000-2018), a US nationally representative survey, were performed for men and women separately.

MAIN OUTCOMES AND MEASURES

Sexual frequency in the past year (sexual inactivity, once or twice per year, 1-3 times per month, or weekly or more) and number of sexual partners in the past year (0, 1, 2, or ≥3 partners). The association between measures of sexual activity and sociodemographic variables were assessed using logistic regression.

RESULTS

The study population included 4291 men and 5213 women in the analysis of sexual frequency and 4372 men and 5377 women in the analysis of number of sexual partners (mean [SD] age, 31.4 [7.6] years; survey response rate, 59.5%-71.4%). Between 2000-2002 and 2016-2018, the proportion of 18- to 24-year-old individuals who reported having had no sexual activity in the past year increased among men (18.9% vs 30.9%; age-adjusted odds ratio [aOR] for trend across survey periods, 1.20; 95% CI, 1.04-1.39) but not among women (15.1% vs 19.1%; aOR for trend, 1.03; 95% CI, 0.89-1.18). Smaller absolute increases in sexual inactivity were observed among those aged 25 to 34 years for both men (7.0% vs 14.1%; aOR for trend, 1.23; 95% CI, 1.07-1.42) and women (7.0% vs 12.6%; aOR for trend, 1.17; 95% CI, 1.01-1.35) but not among those aged 35 to 44 years. The increase in sexual inactivity coincided with decreases in the proportion reporting weekly or more sexual frequency (men aged 18-24 years: 51.8% vs. 37.4%; aOR for trend, 0.88 [95% CI, 0.79-0.99]; men aged 25-34 years: 65.3% vs 50.3%; aOR for trend, 0.87 [95% CI, 0.81-0.94]; women aged 25-34 years: 66.4% vs. 54.2%; aOR for trend, 0.90 [95% CI, 0.84-0.96]) or 1 sexual partner (men aged 18-24 years: 44.2% vs. 30.0%; aOR for trend, 0.88 [95% CI, 0.80-0.98]; women aged 25-34 years: 79.6% vs 72.7%; aOR for trend, 0.91 [95% CI, 0.84-0.99]) and occurred mainly among unmarried men (unmarried men aged 18-44 years: 16.2% vs 24.4%; aOR for trend, 1.14 [95% CI, 1.04-1.25]). Among married men and women, weekly or more sexual frequency decreased (men: 71.1 % vs 57.7%; aOR for trend, 0.86 [95% CI, 0.79-0.93]; women: 69.1% vs 60.9%; aOR for trend, 0.92 [95% CI, 0.86-0.99]). Men with lower income (aOR for men with an annual income of ≥$50 000 vs $0-$9999, 0.37 [95% CI, 0.15-0.90]) and with part-time (aOR vs full-time employment, 2.08; 95% CI, 1.48-2.93) and no employment (aOR vs full-time employment, 2.08; 95% CI, 1.48-2.93) were more likely to be sexually inactive, as were men (aOR vs full-time employment, 2.94; 95% CI, 2.06-4.21) and women (aOR vs full-time employment, 2.37; 95% CI, 1.68-3.35) who were students.

CONCLUSIONS AND RELEVANCE

This survey study found that from 2000 to 2018, sexual inactivity increased among US men such that approximately 1 in 3 men aged 18 to 24 years reported no sexual activity in the past year. Sexual inactivity also increased among men and women aged 25 to 34 years. These findings may have implications for public health.

Diverse Sexual Behaviors and Pornography Use: Findings From a Nationally Representative Probability Survey of Americans Aged 18 to 60 Years

BACKGROUND

Convenience sample data indicate that substantial portions of adults have engaged in sexual behaviors sometimes described as rough; little is known about these behaviors at the population level.

AIM

To describe, in a U.S. probability sample of Americans aged 18 to 60 years, (i) the prevalence of diverse sexual behaviors, described here as dominant and target behaviors; (ii) the age at first pornography exposure as well as prevalence, range, and frequency of pornography use; (iii) the association between past year pornography use frequency and dominant/target sexual behaviors; and (iv) associations between lifetime range of pornography use and dominant/target sexual behaviors.

METHODS

A confidential cross-sectional online survey was used in this study.

OUTCOMES

Lifetime engagement in dominant behaviors (eg, spanking, choking, name calling, performing aggressive fellatio, facial ejaculation, penile-anal penetration without first asking/discussing) and lifetime engagement in target behaviors (eg, being spanked, being choked, being called names during sex, having their face ejaculated on, receiving aggressive fellatio, or receiving penile-anal penetration without having discussed) were assessed; lifetime pornography use, age at first porn exposure, past-year frequency of porn viewing, and lifetime range of pornography were also assessed.

RESULTS

Women as well as men who have sex with men were more likely to report target sexual behaviors: having been choked (21.4% women), having one's face ejaculated on (32.3% women, 52.7% men who have sex with men), and aggressive fellatio (34.0% women). Lifetime pornography use was reported by most respondents. After adjusting for age, age at first porn exposure, and current relationship status, the associations between pornography use and sexual behaviors was statistically significant.

CLINICAL IMPLICATIONS

Clinicians need to be aware of recent potential shifts in sexual behaviors, particularly those such as choking that may lead to harm.

STRENGTHS & LIMITATIONS

Strengths include U.S. probability sampling to provide population level estimates and the use of Internet-based data collection on sensitive topics. We were limited by a lack of detail and context related to understanding the diverse sexual behaviors assessed.

CONCLUSION

Clinicians, educators, and researchers have unique and important roles to play in continued understanding of these sexual behaviors in the contemporary United States. Herbenick D, Fu T-C, Wright P, et al. Diverse Sexual Behaviors and Pornography Use: Findings From a Nationally Representative Probability Survey of Americans Aged 14 to 60 Years. J Sex Med 2020;17:623-633.

Sexual Abstinence and Associated Factors Among Young and Middle-Aged Men: A Systematic Review

INTRODUCTION

Sexual activity is an essential human need and an important predictor of other aspects of human life. A literature review was conducted to investigate whether sexual abstinence in young and middle-aged men is generally considered a deliberate, healthy behavior and whether it has other causes and consequences.

AIM

To review the prevalence and factors associated with sexual abstinence in young (10-24 years) and middle-aged (25-59 years) men.

METHODS

Studies were retrieved from Science Direct, PubMed, and EBSCOhost published from 2008 to 2019. The selection criteria were original population- or community-based articles, published in the English language, on sexual abstinence, and in young and middle-aged men.

MAIN OUTCOME MEASURE

This article reviewed the literature on the proportions of and factors associated with sexual abstinence in young and middle-aged men.

RESULTS

A total of 13,154 studies were retrieved, from which data were extracted for 37 population- or community-based studies. The prevalence of sexual abstinence varied from 0% to 83.6% in men younger than 60 years. The prevalence of primary sexual abstinence was 3.4%-83.3% for young men and 12.5%-15.5% for middle-aged men. The prevalence of secondary abstinence for young men ranged from 1.3% to 83.6%, while for middle-aged men, it was from 1.2% to 67.7%. The prevalence of sexual abstinence decreased with increasing age in young men but increased with increasing age in middle-aged men. The significant factors reported were age, single status, poor relationships, low socioeconomic status, sex education, religious practices, caring and monitoring parents, and not using alcohol, cigarettes, or drugs. Although the variations in findings from different studies can be explained by different regions and cultures, the information cannot be generalized worldwide because of a lack of studies in Asian and Australian populations.

CLINICAL IMPLICATIONS

The studies on sexual abstinence in the future should use a consistent and standard definition, cover all sexual behaviors, and investigate all related factors.

STRENGTH & LIMITATIONS

The restricted timeframe (2008-2019), English language, availability of full text, and variability in definition and time duration may be the sources of bias.

CONCLUSION

Young men had higher proportions of sexual abstinence than middle-aged men, and age, unavailability of a partner, lower educational levels, low socioeconomic status, conservative and religious conditions, and no or less knowledge about sexually transmitted infections were common predictors of sexual abstinence in most of the men. Although determinants of sexual abstinence were identified, further investigation of biological factors in men younger than 60 years is needed. Irfan M, Hussain NHN, Noor NM, et al. Sexual Abstinence and Associated Factors Among Young and Middle-Aged Men: A Systematic Review. J Sex Med 2020;17:412-430.