Child Abuse as a Predictor of Gendered Sexual Orientation Disparities in Body Mass Index Trajectories Among U.S. Youth From the Growing Up Today Study

PurposeThis research aimed to explain sexual orientation disparities in body mass index (BMI) by examining child abuse history, weight-related behaviors, and sociodemographics.MethodsWe used data from 7,960 females and 5,992 males from the prospective Growing Up Today Study over nine waves between 1996 (ages 12–14 years) and 2007 (ages 20–25 years). Using repeated measures of BMI (kg/m²) as a continuous outcome, gender-stratified latent quadratic growth models adjusted for child abuse history, weight-related behaviors, and sociodemographics. BMI at age 17 years (intercept) and 1-year change in BMI (slope) are reported.ResultsBisexual females had higher BMI at age 17 years (β = 1.59, 95% CI = 1.00–2.18) and displayed greater one-year increases in BMI (β = .09, 95% CI = .03–.14), compared with completely heterosexual females. Gay males displayed smaller 1-year increases in BMI (β = −.19, 95% CI = −.25 to −.12), compared with completely heterosexual males. No sexual orientation differences in BMI at age 17 years were observed for males, but gay males' BMI at age 25 was less than completely heterosexual males' BMI by 2 units. Among females, sexual orientation differences remained but were slightly attenuated after controlling for child abuse history, weight-related behaviors, and sociodemographics. Among males, the addition of child abuse and weight-related behaviors did not change the estimated difference in 1-year BMI increases.ConclusionsSexual orientation differences in BMI were partly explained by child abuse and weight-related behaviors in females. More research is needed to explore additional drivers of these disparities among both females and males.     

The Effect of a High Salt Diet and Gender on Blood Pressure,Urinary Protein Excretion and Renal Pathology in Shr Rats

A high salt diet produced increases in SBP, urinary protein excretion (UPE) and renal vascular lesions (RVL) across groups of male and female SHR rats which were allowed to develop moderate or excessive increases in SBP. A highly significant linear relationship between SBP and log-transformed UPE was found when the data from all groups were analyzed together. Males developed high blood-pressure more rapidly, and exhibited more severe RVL and greater UPE than females. Two results prevent the conclusion that the elevated UPE was simply due to the adverse effects of high BP on the kidney. First, the relationship between SBP and UPE across groups could not be demonstrated when regression analyses were performed within individual dietary sub-groups. Secondly, gender differences in UPE were highly significant by analysis of covariance adjusting for individual differences in SBP. The increases in SBP and UPE may be independent consequences of ingestion of a high salt diet.     

Men in kindergartens: work culture and gender

This article examines the impact on work culture when men work in kindergartens. In Norway, as in other countries there has been a call for more male staff in kindergartens. Increasing the amount of men may imply that institutionalized norms and practice are put under pressure. By using a case study approach, the focus is on employees’ experiences and practice in daily life in the kindergarten. Two processes, negotiation about work organization and the division of labour, illustrate the empirical part of this article. The findings indicate that female staff negotiate for standardized workdays and norms of sameness, while the males negotiate for a flexible workday and division of labour based on their interests. The difference in practice between males and females and negotiation about the division of labour contribute to constructing gendered work cultures.     

Association Between Marijuana Use and Sexual Frequency in the United States: A Population-Based Study

BackgroundMarijuana use is increasingly prevalent in the United States. Effects of marijuana use on sexual function are unclear, with contradictory reports of enhancement and detriment existing.AimTo elucidate whether a relation between marijuana use and sexual frequency exists using a nationally representative sample of reproductive-age men and women.MethodsWe analyzed data from cycle 6 (2002), cycle 7 (2006–2010), and continuous survey (2011–2015) administrations of the National Survey of Family Growth, a nationally representative cross-sectional survey. We used a multivariable model, controlling for demographic, socioeconomic, and anthropographic characteristics, to evaluate whether a relationship between marijuana use and sexual frequency exists.OutcomesSexual frequency within the 4 weeks preceding survey administration related to marijuana use and frequency in the year preceding survey administration.ResultsThe results of 28,176 women (average age = 29.9 years) and 22,943 men (average age = 29.5) were analyzed. More than 60% of men and women were Caucasian, and 76.1% of men and 80.4% of women reported at least a high school education. After adjustment, female monthly (incidence rate ratio [IRR] = 1.34, 95% CI = 1.07–1.68, P = .012), weekly (IRR = 1.36, 95% CI = 1.15–1.60, P < .001), and daily (IRR = 1.16, 95% CI = 1.01–1.32, P = .035) marijuana users had significantly higher sexual frequency compared with never users. Male weekly (IRR = 1.22, 95% CI = 1.06–1.41, P = .006) and daily (IRR = 1.36, 95% CI = 1.21–1.53, P < .001) users had significantly higher sexual frequency compared with never users. An overall trend for men (IRR = 1.08, 95% CI = 1.05–1.11, P < .001) and women (IRR = 1.07, 95% CI = 1.04–1.10, P < .001) was identified showing that higher marijuana use was associated with increased coital frequency.Clinical ImplicationsMarijuana use is independently associated with increased sexual frequency and does not appear to impair sexual function.Strengths and LimitationsOur study used a large well-controlled cohort and clearly defined end points to describe a novel association between marijuana use and sexual frequency. However, survey responses were self-reported and represent participants only at a specific point in time. Participants who did not answer questions related to marijuana use and sexual frequency were excluded.ConclusionA positive association between marijuana use and sexual frequency is seen in men and women across all demographic groups. Although reassuring, the effects of marijuana use on sexual function warrant further study.Sun AJ, Eisenberg ML. Association Between Marijuana Use and Sexual Frequency in the United States: A Population-Based Study. J Sex Med 2017;14:1342–1347.     

Diaphragmatic Ultrasound Correlates with Inspiratory Muscle Strength and Pulmonary Function in Healthy Subjects

Diaphragm ultrasound (DUS) has been used to identify diaphragm dysfunction. However, its correlations with respiratory strength and lung function are unclear, even in healthy patients. A total of 64 healthy patients (30 males) had lung function and inspiratory strength (maximal inspiratory pressure and sniff nasal inspiratory pressure) measured. Gastric and oesophageal pressures were measured in a subgroup (n?=?40). DUS was characterized by mobility (quiet breathing [QB] and deep breathing [DB]) and thickness (at functional residual capacity [Th_FRC] and total lung capacity [Th_TLC]). We calculated the thickening fraction (TF). During QB, DUS was similar between sexes. However, during DB, females had lower mobility, thickness and TF than males. Mobility at DB, Th_TLC and TF significantly correlated with lung function and inspiratory strength. These correlations were affected by sex. DUS correlated with inspiratory gastric pressure. In healthy patients, DUS correlated with lung function and inspiratory strength during DB. Significant differences between genders were noticeable when DUS was performed during DB.     

Barriers and incentives for choosing to specialise in mammography– A survey of Australian undergraduate diagnostic radiography students

IntroductionThere is a projected shortage of radiographers working in breast screening in Australia. This study aimed to examine the perceived barriers and potential incentives among current undergraduate diagnostic radiography students to train, specialise and work in mammography.MethodsA survey was undertaken to assess students' experience of six modalities during both University study and clinical practice. Students were asked to rank their priority of which they would want to specialise and if training and working in mammography was an option.ResultsFrom 248 students invited to participate, 101 students replied to the survey. Students indicated that they had been taught all modalities, however not all students had experienced them on clinical placement. Most students had observed or performed ultrasound (US) (90%, 90%), Computed Tomography (CT) (97%, 75%) and fluoroscopy (80%, 52%), though very few had experience of mammography (55%, 8%). US, CT, and MRI were the modalities that most students would like to specialise in. Male students reported being discriminated against working in mammography as this is “female only” work.ConclusionStudents have more clinical access to the major modalities of US, CT and MRI, and this appears to be a major factor into why student wish to specialise in these modalities. Role extension and higher wages were given as possible incentives that would make specialising in Mammography more appealing. The gender divide may have to be bridged to enable crucial recruitment as male students feel discriminated against.     

Big drinkers: How BMI,gender and rules of thumb influence the free pouring of wine

BackgroundThis research examines free pouring behavior and provides an account of how Body Mass Index (BMI) and gender might lead to the overpouring, and consequently the overconsumption of wine.MethodsAn observational study with young adults investigated how BMI and gender affect free-pouring of wine over a variety of pouring scenarios, and how rules-of-thumb in pouring affect the quantities of alcohol poured by men and women across BMI categories.ResultsFor men, the amount poured was positively related to BMI. However, BMI did not affect pours by women. The use of the “half glass” rule-of-thumb in pouring reduced the volume of wine poured by over 20% for both men and women. Importantly, this rule-of-thumb substantially attenuated the pours by men at high BMI levels.ConclusionIncreasing awareness of pouring biases represents an early and effective step toward curbing alcohol consumption among men, and especially those who are overweight. Additionally, using a simple “half glass” rule-of-thumb may be an effective way to curb overpouring, despite non-standard glass sizes.     

Chronotype ontogeny related to gender

Chronotype is an established concept designed to identify distinct phase relationships between the expression of circadian rhythms and external synchronizers in humans. Although it has been widely accepted that chronotype is subjected to ontogenetic modulation, there is no consensus on the interaction between age and gender. This study aimed to determine the relationship between age- and gender-related changes in the morningness-eveningness character in a large sample of people. A total of 14,650 volunteers were asked to complete the Brazilian version of the Horne and Östberg chronotype questionnaire. The data demonstrated that, on average, women were more morning-oriented than men until the age of 30 and there were no significant differences between men and women from 30 to 45 years of age. In contrast to the situation observed until the age of 30, women older than 45 years were more evening-oriented than men. These results suggest that the ontogenetic development of the circadian timekeeping system is more plastic in men, as represented by the larger amplitude of chronotype changes throughout their aging process. The phase delay of adolescence and phase advance of the elderly seem to be phenomena that are more markedly present in men than in women. Thus, our data, for the first time, provide support that sharply opposes the view that there is a single path toward morningness as a function of age, regardless of gender.     

Children with autism spectrum disorder from China and the Netherlands: Age of diagnosis,gender and comorbidities

BackgroundIn recent years, an increasing number of studies have highlighted progress in ASD clinical practice and scientific research in China (Zheng & Zheng, 2015). However, little is known about the differences between clinical or scientific approaches to ASD between China and other countries. In our study we explored the impact of gender, comorbidity, parental educational and vocational status on the age of diagnosis in two samples of children with ASD from China and the Netherlands.Method433 children with ASD aged between 6 to 14 from China and 492 age matched children with ASD from the Netherlands were investigated based on national databases on individuals with ASD.ResultsWe found a lower diagnosis age in China compared to the Netherlands. The Chinese sample showed a higher male/female ratio and a higher proportion of co-morbid ADHD diagnoses, but lower age of first concern, diagnosis age and shorter delay from first concern to diagnosis. In the Dutch sample only, co-morbid ADHD resulted in lower age of first concern. The differential impact of comorbidity and gender across both countries may be related to cultural and clinical variations.ConclusionsThis study may help us understand ASD from a cross-cultural perspective.     

Stressful Life Events and Adolescent Substance Use and Depression: Conditional and Gender Differentiated Effects

Stressful life circumstances have myriad influences on human health and behavior. Early research focused on the variable distribution of stress and its effects by socioeconomic status, race, and gender. More recent research indicates that variation by age is also an important consideration. for example, adolescent reactions to stressful life events are often inconsistent with adult reactions to similar life situations and transitions. Moreover, since most studies assess only a single outcome-usually depression-they risk classification bias since analyses exclude other potential stress-related outcomes. This paper assesses the gender distinct effects of stressful life events on two outcomes among adolescents, substance use and depressive symptoms. The results of a second-order regression model indicate that life events affect female, but not male, depressive symptoms, especially when self-esteem is low or mastery is high. Furthermore, life events affect substance use when peer drug use is high, or when parental support is low, but this latter effect is limited to female adolescents.