scholarly journals A model for reconstructing trends and distribution in age at first sex from multiple household surveys with reporting biases

2021 ◽  
Author(s):  
Van Kinh Nguyen ◽  
Jeffrey W Eaton
Keyword(s):  
Logistic Distribution ◽  
Demographic And Health Surveys ◽  
Household Surveys ◽  
Birth Cohorts ◽  
First Sex ◽  
Sexually Transmitted ◽  
Interval Censored ◽  
Nationally Representative ◽  
Using Data ◽  
Improved Model

Age at first sex (AFS) is a key indicator for monitoring sexual behaviour risk for HIV and sexually transmitted diseases. Reporting of AFS data, however, suffer social-desirability and recall biases which obscure AFS trends and inferences constructed from it. We illustrated examples of the biases using data from multiple nationally-representative Demographic and Health Surveys household surveys conducted between 1992 and 2019 in Ethiopia (4 surveys), Guinea (4 surveys), Senegal (8 surveys), and Zambia (8 surveys). Based on this, we proposed a time-to-event, interval censored model for the AFS that uses overlapping reports by the same birth cohort in successive surveys to adjust reporting biases. The three-parameter log-skew-logistic distribution described the asymmetric and nonmonotonic hazard exhibited by empirical AFS data. In cross-validation analysis, incorporating a term for AFS reporting bias as a function of age improved model predictions for the trend of AFS over birth cohorts. The interquartile range for the AFS was 16 years to 23 years for Ethiopian and Senegalese women and 15 years to 20 years for Guinean and Zambian men. Median AFS increased by around one to 1.5 years between the 1960 and 1989 birth cohorts for all four datasets. Younger male respondents tended to report a younger AFS while female respondents tended to report an older AFS than when asked in later surveys. Above age 30, both male and female respondents tended to report older AFS compared to when surveyed in their late twenties. Simulations validated that the model recovers the trend in AFS over birth cohorts in the presence of reporting biases. At least three surveys are needed to obtain reliable trend estimate for a 20-years trend. Mis-specified reference age at which reporting is assumed unbiased did not affect the trend estimate but resulted in biased estimates for the median AFS in the most recent birth cohorts.

scholarly journals Trends and country-level variation in age at first sex in sub-Saharan Africa among birth cohorts entering adulthood between 1985 and 2020

2021 ◽  
Author(s):  
Van Kinh Nguyen ◽  
Jeffrey W Eaton
Keyword(s):  
Gender Gap ◽  
Sexual Debut ◽  
Random Effect Model ◽  
Sub Saharan Africa ◽  
Logistic Distribution ◽  
Birth Cohorts ◽  
First Sex ◽  
Sub Saharan ◽  
Ssa Countries ◽  
Over Time

Background: Debuting sexual intercourse is a life course event marking exposure to pregnancy or fatherhood, and sexually transmitted infections (STIs), including HIV. We systematically analysed the timing, distribution, and trends in age at first sex (AFS) in 42 sub-Saharan Africa (SSA) countries. Methods: We collated individual-level AFS data from nationally representative household surveys across SSA. We used a log-skew-logistic distribution to model the distribution of AFS in a Bayesian spatio-temporal hierarchical random-effect model to estimate national trends of AFS over time and space, adjusting for age at report biases. Findings: Small changes in AFS are observed between the birth cohorts entering adulthood between 1985 and 2020, ranging 0.79 years [-0.01-1.51] and 0.48 [-0.03-1.92] for female and male, respectively. Northern SSA countries show appreciable increase in AFS but its gender gap remains the widest compared with minimal gender gap in the southern countries. The gender gap shows little evidence of change over time in most of the countries. Female's AFS approach to a similar age across SSA while male's AFS varies between regions. Proportion ever had sex under fifteen and eighteen are as high 34% and 83%, respectively. AFS distribution is typically asymmetric with most of sexual debut events occur in a span of 3.9 [3.4-5.0] years. Female teen often reports higher AFS compare to their late twenties while male teen report lower AFS; both sexes tend to recall a higher AFS in older ages compared to their thirties. Interpretation: Women debut sexually earlier and in a shorter span of age than men. Northern and southern SSA gender gap are distinctively different. Since the ratifying of HIV/AIDS intervention programs in SSA, a stagnant trend in AFS had remained in the countries most affected by the epidemic.

scholarly journals Depends Who's Asking: Interviewer Effects in Demographic and Health Surveys Abortion Data

Demography ◽  
2021 ◽  
Vol 58 (1) ◽  
pp. 31-50
Author(s):  
Tiziana Leone ◽  
Laura Sochas ◽  
Ernestina Coast
Keyword(s):  
Health Surveys ◽  
Demographic Data ◽  
Demographic And Health Surveys ◽  
Household Surveys ◽  
Gender Based Violence ◽  
Interviewer Effects ◽  
Survey Questions ◽  
Wide Range ◽  
Nationally Representative ◽  
The Impact

Abstract Responses to survey questions about abortion are affected by a wide range of factors, including stigma, fear, and cultural norms. However, we know little about how interviewers might affect responses to survey questions on abortion. The aim of this study is to assess how interviewers affect the probability of women reporting abortions in nationally representative household surveys: Demographic and Health Surveys (DHS). We use cross-classified random intercepts at the level of the interviewer and the sampling cluster in a Bayesian framework to analyze the impact of interviewers on the probability of reporting abortions in 22 DHS conducted worldwide. Household surveys are the only available data we can use to study the determinants and pathways of abortion in detail and in a representative manner. Our analyses are motivated by improving our understanding of the reliability of these data. Results show an interviewer effect accounting for between 0.2% and 50% of the variance in the odds of a woman reporting ever having had an abortion, after women's demographic characteristics are controlled for. In contrast, sampling cluster effects are much lower in magnitude. Our findings suggest the need for additional effort in assessing the causes of abortion underreporting in household surveys, including interviewers' skills and characteristics. This study also has important implications for improving the collection of other sensitive demographic data (e.g., gender-based violence and sexual health). Data quality of responses to sensitive questions could be improved with more attention to interviewers—their recruitment, training, and characteristics. Future analyses will need to account for the role of interviewer to more fully understand possible data biases.

scholarly journals Comparison of 1-week and 2-week recall periods for caregiver-reported diarrhoeal illness in children, using nationally representative household surveys

2019 ◽  
Vol 48 (4) ◽  
pp. 1228-1239 ◽  
Author(s):  
Katie N Overbey ◽  
Kellogg J Schwab ◽  
Natalie G Exum
Keyword(s):  
Risk Factors ◽  
Time Window ◽  
Diarrhoeal Disease ◽  
Demographic And Health Surveys ◽  
Household Surveys ◽  
Period Prevalence ◽  
Children Under Five ◽  
Under Five ◽  
Childhood Diarrhoea ◽  
Nationally Representative

Abstract Background Diarrhoeal outcomes in children are often ascertained using caregiver-reported symptoms, which are subject to a variety of biases and methodological challenges. One source of bias is the time window used for reporting diarrhoeal illness and the ability of caregivers to accurately recall episodes in children. Methods Diarrhoea period prevalence in children under five was determined using two similarly administered, nationally representative household surveys: Performance Monitoring and Accountability 2020 (PMA2020) (1-week recall, N = 14 603) and Demographic and Health Surveys (DHS) (2-week recall, N = 66 717). Countries included in the analysis were the Democratic Republic of the Congo, Ethiopia, Ghana, Kenya and Uganda. Diarrhoea period prevalence estimates were compared and water, sanitation and hygiene risk factors were analysed. Results Childhood diarrhoea prevalence using 1-week recall (PMA2020) pooled across countries was 21.4% [95% confidence interval (CI): 19.9%, 22.9%] versus 16.0% using 2-week recall (DHS) (95% CI: 15.4%, 16.5%). In stratified analyses for all five countries, the number of diarrhoea cases detected was consistently higher using 1-week recall versus 2-week recall. The key risk factors identified in the PMA2020 data that were not associated with diarrhoeal episodes or were attenuated in the DHS data included: the main sanitation classifications for households, disposal method used for child faeces, number of household members and wealth quintiles. Conclusions For nationally representative household surveys assessing childhood diarrhoea period prevalence, a 2-week recall period may underestimate diarrhoea prevalence compared with a 1-week period. The household sanitation facility and practices remain key risk factors for diarrhoeal disease in children under five.

Openness and Self-enhancement are predictors of cultural and economic beliefs: an analysis of European countries across 15 years

2019 ◽  
Author(s):  
Gabriela Czarnek ◽  
Małgorzata Kossowska
Keyword(s):  
Cultural Context ◽  
Cultural Beliefs ◽  
European Social Survey ◽  
European Countries ◽  
Political Beliefs ◽  
Economic Beliefs ◽  
Nationally Representative ◽  
Self Transcendence ◽  
Using Data ◽  
The Relationship

In this study, we investigate the relationship between values and political beliefs and how it varies as a function of cultural context and time. In particular, we analyzed the effects of Conservation vs. Openness to change and Self-transcendence vs. Self-enhancement for cultural and economic political beliefs using data from nationally representative samples of citizens from 34 European countries from eight rounds of the European Social Survey (data spans the 2002–2016 period). We found that the effects of values on political beliefs are moderated by the Western vs. Eastern cultural context and that there is a modest round-to-round variation in the effects of values on beliefs. The relationship between Openness and cultural beliefs was negative and largely consistent across the Western and Eastern countries. Similarly, the effects of Self-enhancement were positive across these Western and Eastern countries. In contrast, the effects of Openness on economic beliefs were positive for the Eastern countries but largely weak and inconsistent for the Western countries. Finally, the effects of Self-enhancement on cultural beliefs are weak for both cultural contexts.

scholarly journals Use of Protection for Unwanted Pregnancy and Sexually Transmitted Infections in Six Birth Cohorts in Norway 2020: A Descriptive Study

2021 ◽  
Author(s):  
Bente Træen ◽  
Nantje Fischer
Keyword(s):  
General Population ◽  
Sexually Transmitted Infections ◽  
Emergency Contraception ◽  
Unwanted Pregnancy ◽  
Hormonal Contraception ◽  
Descriptive Study ◽  
Panel Survey ◽  
Birth Cohorts ◽  
Significant Drop ◽  
Sexually Transmitted

AbstractThis study describes the use of contraception and protection for sexually transmitted infections (STIs) in six different birth cohorts of the general population in Norway. The results are based on a 2020 national web panel survey among 18–89 year-olds in Norway (n = 4160). For respondents born within 1931–1950 versus those born within 1990–2002, there was a significant increase in the use of protection against unwanted pregnancy and STIs during sexual intercourse, and a significant drop in the proportion of those who did not use any protection at all. More women today (than in previous decades) are using hormonal contraception. The main reason for not using condoms during intercourse was both parties felt safe that they were healthy, especially those born within 1990–2002. To prevent unwanted pregnancy and STIs, it is beneficial to continue to increase the availability of free or subsidized hormonal contraception, including emergency contraception, and free condoms in public arenas that people frequent and where they meet their partners.

scholarly journals The Authoritarian Dynamic During the COVID-19 Pandemic: Effects on Nationalism and Anti-Immigrant Sentiment

2021 ◽  
pp. 194855062097802
Author(s):  
Todd K. Hartman ◽  
Thomas V. A. Stocks ◽  
Ryan McKay ◽  
Jilly Gibson-Miller ◽  
Liat Levita ◽  
...  
Keyword(s):  
Social Order ◽  
Situational Factors ◽  
Right Wing ◽  
Right Wing Authoritarianism ◽  
The United Kingdom ◽  
The Social ◽  
Political Outcomes ◽  
Nationally Representative ◽  
Using Data ◽  
The Relationship

Research has demonstrated that situational factors such as perceived threats to the social order activate latent authoritarianism. The deadly COVID-19 pandemic presents a rare opportunity to test whether existential threat stemming from an indiscriminate virus moderates the relationship between authoritarianism and political attitudes toward the nation and out-groups. Using data from two large nationally representative samples of adults in the United Kingdom ( N = 2,025) and Republic of Ireland ( N = 1,041) collected during the initial phases of strict lockdown measures in both countries, we find that the associations between right-wing authoritarianism (RWA) and (1) nationalism and (2) anti-immigrant attitudes are conditional on levels of perceived threat. As anxiety about the COVID-19 pandemic increases, so too does the effect of RWA on those political outcomes. Thus, it appears that existential threats to humanity from the COVID-19 pandemic moderate expressions of authoritarianism in society.

Is Music Teacher Professional Development Becoming More Effective? Evaluating Practice and Policy in the United States, 1993–2012

2020 ◽  
pp. 002242942098252
Author(s):  
Justin J. West
Keyword(s):  
Professional Development ◽  
United States ◽  
Social Interaction ◽  
Teacher Professional Development ◽  
The United States ◽  
Music Teacher ◽  
Policy Practice ◽  
Teacher Professional ◽  
Nationally Representative ◽  
Using Data

The purpose of this study was to evaluate music teacher professional development (PD) practice and policy in the United States between 1993 and 2012. Using data from the nationally representative Schools and Staffing Survey (SASS) spanning these 20 years, I examined music teacher PD participation by topic, intensity, relevance, and format; music teachers’ top PD priorities; and the reach of certain PD-supportive policies. I assessed these descriptive results against a set of broadly agreed-on criteria for “effective” PD: content specificity, relevance, voluntariness/autonomy, social interaction, and sustained duration. Findings revealed a mixed record. Commendable improvements in content-specific PD access were undercut by deficiencies in social interaction, voluntariness/autonomy, sustained duration, and relevance. School policy, as reported by teachers, was grossly inadequate, with only one of the nine PD-supportive measures appearing on SASS reaching a majority of teachers in any given survey year. Implications for policy, practice, and scholarship are presented.

scholarly journals Center-Based Child Care and Differential Improvements in the Child Development Outcomes of Disadvantaged Children

2021 ◽  
Author(s):  
Sarah Anne Reynolds
Keyword(s):  
Child Care ◽  
Child Development ◽  
Economic Status ◽  
Value Added ◽  
Additional Time ◽  
Nationally Representative ◽  
Using Data ◽  
Development Outcomes ◽  
One Year ◽  
The Impact

Abstract Background Research finds center-based child care typically benefits children of low socio-economic status (SES) but few studies have examined if it also reduces inequalities in developmental disadvantage. Objective I test if the length of time in center-based care between ages one and three years associates with child development scores at age three years, focusing on the impact for groups of children in the lower tercile of child development scores and in the lower SES tercile. Method Using data from 1,606 children collected in a nationally representative Chilean survey, I apply a value-added approach to measure gains in child development scores between age one and three years that are associated with length of time in center-based child care. Results Disadvantages at age one year were associated with lower child development scores at age three years. No benefits of additional time in center-based care were found for the non-disadvantaged group, but positive associations were found between more time in center-based care and child development outcomes for children with the SES disadvantage only. Center-based care was not associated with child development trajectories of children with lower child development scores at age one year, no matter their SES status. Conclusions There is evidence that Chilean center-based child care reduces SES inequality in child development scores between ages one and three years, but only if children already were not low-scorers at age one year.

Does Interviewer Religious Dress Affect Survey Responses? Evidence from Morocco

2014 ◽  
Vol 7 (4) ◽  
pp. 734-760 ◽  
Author(s):  
Lindsay J. Benstead
Keyword(s):  
Missing Data ◽  
Social Dynamics ◽  
Representative Survey ◽  
Sensitive Questions ◽  
Interviewer Effects ◽  
Nationally Representative ◽  
And Gender ◽  
Using Data ◽  
Religious Dress ◽  
Survey Responses

AbstractFew studies examine religiosity-of-interviewer effects, despite recent expansion of surveying in the Muslim world. Using data from a nationally-representative survey of 800 Moroccans conducted in 2007, this study investigates whether and why interviewer religiosity and gender affect responses to religiously-sensitive questions. Interviewer dress affects responses to four of six items, but effects are larger and more consistent for religious respondents, in support of power relations theory. Religious Moroccans provide less pious responses to secular-appearing interviewers, whom they may link to the secular state, and more religious answers to interviewers wearing hijab, in order to safeguard their reputation in a society that values piety. Interviewer traits do not affect the probability of item-missing data. Religiosity-of-interviewer effects depend on interviewer gender for questions about dress choice, a gendered issue closely related to interviewer dress. Interviewer gender and dress should be coded and controlled for to reduce bias and better understand social dynamics.

Association between different types of plant-based diet and dyslipidemia in Korean adults

2021 ◽  
pp. 1-17
Author(s):  
Nara Shin ◽  
Jihye Kim
Keyword(s):  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Multivariable Logistic Regression Analysis ◽  
Nutrition Survey ◽  
Korean Adults ◽  
Different Types ◽  
Low Hdl ◽  
Nationally Representative ◽  
Using Data

Abstract This study investigated the association between the different types of plant-based diets and dyslipidemia in Korean adults using data from the nationally representative sample. Using the 2012-2016 Korea National Health and Nutrition Survey data, a total of 14,167 adults (≥19 years old) participated in this study. Dietary intake was assessed by a semi-quantitative food frequency questionnaire. Three different plant-based diet indices (overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), unhealthful plant-based diet index (uPDI)), were calculated. Dyslipidemia and its components (hypertriglyceridemia, hypercholesterolemia, low high-density lipoprotein cholesterol (HDL-C), high low-density lipoprotein cholesterol (LDL-C), use of anti-hyperlipidemia agent) were measured. Multivariable logistic regression analysis was used to examine the associations between plant-based diet and dyslipidemia and individual lipid disorders. Totally, 47% of overall population had dyslipidemia. Individual in the highest quintile of uPDI had 22% greater odds of dyslipidemia (95% CI: 1·05, 1·41) and 48 % higher odds of hypertriglyceridemia (95% CI: 1·21, 1·81) and 16% higher odds of low HDL-C (OR: 1·16, 95% CI: 1·00, 1·35) than those in the lowest quintile of uPDI. PDI was associated with 16 % higher odds of low HDL-C and hPDI were associated with 25% lower odds of high LDL-C. However, Neither PDI nor hPDI was significantly associated with the prevalence of dyslipidemia. Greater adherence to unhealthful plant-based diets was associated with greater odds of the dyslipidemia and its components suggesting the importance of the quality of plant-based diet in South Korean adults for dyslipidemia prevention.

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