Assessment of Biobanking Knowledge and Attitudes towards Biospecimen Donation among Healthcare Providers in Saudi Arabia.

BACKGROUND: Biobanking is a critical cornerstone of the global shift towards precision medicine (PM). This transformation requires smooth and informed interaction between a range of stakeholders involved in the healthcare system. In Saudi Arabia, there is still insufficient awareness of the importance of biobanking and its potential benefits for patients, the healthcare system, and society as a whole. The purpose of this study was to determine the biobanking knowledge of Saudi healthcare providers and the potential factors that might influence their self-reported attitudes toward biospecimen donation and biobanking. METHODS: A cross-sectional study was conducted targeting 636 healthcare providers in Makkah province using a structured, self-administered questionnaire. RESULTS: The study had a response rate of 61%. The mean knowledge level about biobanks was 3.5 (±1.8) out of 7. About one-third of the participants were aware of the Human Genome Project (HGP) (35%) or the term "biobank" (34%). The mean rating of their attitude was 37.3 (±4.3) out of 55. Most participants (74%) had a positive attitude toward medical research. Job position, general health, previous blood tests, knowledge of biobanking, and attitudes toward biomedical research were significantly related and predictors of willingness to donate biospecimens (p < 0.05). However, concerns about biospecimen misuse and confidentiality were the main reasons for not donating biospecimens. CONCLUSIONS: This study has shown that healthcare providers mostly lack basic knowledge about HGP and biobanks and their roles and activities, and therefore are generally disinclined to actively participate in biospecimens' collection and management. It is recommended that medical trainees receive more education and awareness about biobanks and the latest personalized healthcare approaches to improve translational research outcomes and achieve precision medicine.

Does human papillomavirus modify the risk of oropharyngeal cancer related to smoking and alcohol drinking? A systematic review and meta-analysis.

Objective: To synthesize evidence for interactions of traditional oropharyngeal squamous cell carcinoma (OPSCC) risk factors-tobacco smoking and alcohol drinking-with human papillomavirus (HPV). Data Sources: MEDLINE, Embase, Cochrane Database of Systematic Reviews, ProQuest, and Global Health were searched with no restrictions on language or publication date. Methods: All case-control studies assessing interactions between these factors in OPSCC were considered. Quality was assessed using the Newcastle-Ottawa Scale for case-control studies. The main outcome was the OR for developing OPSCC for the following interactions: (1) HPV and smoking, (2) HPV and alcohol drinking, and (3) HPV, alcohol drinking, and smoking. Interactions were assessed from stratified analysis (by HPV status) and/or joint effect analysis (synergy index and multiplicative index). Results: The search provided 3084 relevant studies, of which 9 were included. In the stratified analysis, the OR of developing OPSCC among smokers with HPV was less than that among smokers without HPV. A similar pattern was observed for alcohol drinking. This effect persisted among smokers and heavy alcohol drinkers with HPV compared with those without HPV. Joint effect analysis on the additive scale showed sub-additive antagonistic interactions between HPV and smoking, and between HPV and alcohol. On the multiplicative scale, sub-multiplicative interactions were found between HPV and smoking, and HPV and alcohol. Conclusions: This meta-analysis suggests a negative directed interaction of HPV and smoking; and HPV and heavy alcohol drinking in the development of primary OPSCC on stratified analysis and joint effect analysis. Level of Evidence: 3A.

Men's Knowledge of and Behavior toward Mammography Screening: A Cross-Sectional Study.

BACKGROUND: Breast cancer (BC) is a public health problem that affects many populations worldwide. Women's health care behavior, including seeking mammography screening, might be affected by men, especially in conservative Arab societies. Few studies have investigated men's behavior toward mammography for female relatives. The main aims of this study were (i) to evaluate men's knowledge about mammography screening and (ii) to assess men's behavior toward women regarding mammogram screening and the factors influencing their behavior. METHODS: A cross-sectional study was conducted among male residents of the five main geographic areas of Saudi Arabia. Data were obtained with a self-administered questionnaire. In addition to sociodemographic data, the questionnaire assessed respondents' general knowledge about mammograms, their behavior toward female family members who use mammography, and their perceptions about awareness campaigns. RESULTS: A total of 9691 male respondents were included in the study. The majority (79%) recommended mammography to their female family members. Multiple factors were significantly associated with men recommending mammograms, including age (p <0.01), education (p <0.01), employment status (p <0.01), and region (p <0.01). Only 33.8% of the participants had a high knowledge score about mammography. Approximately 45% of respondents reported that BC awareness campaigns were weak, while 48% were not aware of BC screening programs. CONCLUSIONS: Despite their positive behavior in recommending mammograms to female relatives, men exhibited a notable lack of knowledge about mammography. Establishing national programs and educational campaigns for men to explain the benefits of screening and access to free mammography are essential.
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Human papillomavirus knowledge and vaccine acceptability among male medical students in Saudi Arabia.

Human papillomavirus (HPV), the most common sexually transmitted infection worldwide, is responsible for a variety of cancers. HPV vaccines can help prevent this infection and its potentially devastating carcinogenic outcomes. Although the incidence of HPV-related oropharyngeal cancers among males is increasing, few studies have been published on HPV knowledge and vaccine acceptability among males. In this cross-sectional study, we assessed knowledge about HPV and the vaccine, as well as its acceptability, among third- and fourth-year male medical students in Jeddah, Saudi Arabia. Respondents were enrolled in any of the medical colleges in Jeddah from February to December 2018. A validated survey was used to collect information on HPV infection and vaccine knowledge and to ask questions assessing vaccine acceptability. HPV knowledge scores were created, and vaccine acceptability predictors were assessed with logistic regression. We collected data from 517 participants. Approximately 74% of the students had heard of HPV, with a mean knowledge score of 5.9 ± 4.6 out of 16; only 42% had heard of the HPV vaccine, with a mean knowledge score of 0.9 ± 1.6 out of 7. Among the respondents, 48.9% were interested in receiving the HPV vaccine. Although HPV infection and vaccine knowledge did not correlate with vaccine acceptability, those who had previously received the hepatitis B vaccine were more interested in receiving the HPV vaccine. In conclusion, male medical students had low HPV knowledge. Improving their HPV knowledge is important, as they are future health-care providers. The promotion of HPV vaccines in this potentially influential group is crucial for achieving effective disease prevention.

Socioeconomic variations in risky sexual behavior among adolescents in 14 sub-Saharan Africa countries who report ever having had sex.

BACKGROUND: Equity is a guiding principle of the Global Strategy for Women, Children and Adolescents' Health (2016-2030) aimed at improving adolescent health and responding more effectively to adolescents' needs. We investigated the socioeconomic differentials in having multiple sexual partners and condom use among unmarried adolescents who reported ever having had sex aged 15-19 years in 14 sub-Saharan countries. METHODS: Using the most recent publicly available Demographic and Health Surveys conducted between 2011 and 2018, we calculated survey- and sex-specific proportions of two or more partners and condomless sex, both overall and by selected socioeconomic characteristics and we fitted logistic regression models to estimate the survey- and sex-specific adjusted odds ratios. The pooled adjusted odds ratios were estimated using multilevel logistic regression. RESULTS: In most countries, higher percentages of male adolescents than female adolescents reported having more than one partner in the last 12 months. Conversely, a lower percentage of young male reported having condomless sex when compared to young female: from 19.8% in Gabon to 84.5% in Sierra Leone among male adolescents and from 32.6% in Gabon to 93.2% in Sierra Leone among female adolescents. In the multilevel analyses, condomless sex was associated with place of residence, wealth and schooling for both female and male adolescents, while among male adolescents multiple partnerships was significantly associated with place of residence. CONCLUSION: Our findings on disparities in condomless sex associated with socioeconomic characteristics might reflect constraint choice and decision making. Results also suggest the need for educational programming and services and better access to barrier methods.

Knowledge of Human Papillomavirus (HPV) and Oropharyngeal Cancer and Acceptability of the HPV Vaccine among Dental Students.

OBJECTIVES: To assess knowledge about human papillomavirus (HPV), vaccination, and HPV-related oropharyngeal cancer (OPC) and to evaluate HPV vaccine acceptability among a sample of undergraduate dental students. METHODS: All third- and fourth-year dental students enrolled in any of the dental schools in Jeddah, Saudi Arabia, were invited to participate in this cross-sectional study. In total, 500 students completed a self-administered questionnaire on HPV, HPV vaccines, and HPV-related OPC knowledge. HPV, HPV vaccine and HPV-related OPC knowledge scores were calculated. Associations of participants characteristics with the knowledge scores and with willingness to take the HPV vaccine were assessed. RESULTS: Of the participants, 62% had heard of HPV infections, and 57% of HPV vaccines. Average knowledge scores were low: HPV knowledge score 3.8±4.5 out of 16, HPV vaccination knowledge score 0.9±1.6 out of 7, OPC knowledge score 0.9±1.2 out of 5. Clinical-year students had better knowledge and were more willing to take the HPV vaccine than were preclinical-year students, as were those vaccinated for hepatitis B versus those not vaccinated for hepatitis B. Students with higher HPV knowledge scores were more willing to take the HPV vaccine (66%) than were those with lower scores (43%) (p=0.018). Only 4% of males and 12% of females reported taking the HPV vaccine. Of those who refused it, 51% cited lack of knowledge as the primary reason. CONCLUSIONS: Knowledge about HPV, its vaccine, and HPV-related OPC is low among this sample of Saudi undergraduate dental students. Improving knowledge among them may increase their awareness, which could affect the care provided to patients.
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Do Men and Women in Saudi Arabia Have the Same Level of Awareness and Knowledge of Breast Cancer? A Cross-Sectional Study.

CONTEXT: Awareness is important in combating breast cancer, as early detection (through mammograms) and prompt treatment offer the greatest chance of long-term survival. AIMS: The aim of this study was to assess public knowledge of breast cancer (signs, symptoms, and risk factors) and awareness of screening programs; and compare it among men and women. MATERIALS AND METHODS: A cross-sectional study was conducted among male and female residents of five of the geographic regions of Saudi Arabia from February 2015 to May 2015. Information was collected using a questionnaire, and included sociodemographic data, general knowledge about breast cancer, and awareness of screening programs. Chi-squared test was used to compare the binary knowledge variables (correct/incorrect) between men and women. Logistic regression was utilized to assess predictors of breast cancer knowledge. RESULTS: A total of 9691 men and 31,022 women were surveyed. Women had better knowledge regarding breast cancer symptoms than men, except for breast cancer being related to death. Men and women had similar knowledge of breast cancer risk factors; however, more women correctly identified family history (68%), large breast size (46%) as increasing risk, and breastfeeding (60%) as reducing the risk of breast cancer compared to men (56%, 32%, and 47%, respectively). Older age and higher education were related with high breast cancer knowledge, and it was more pronounced among men. Employment was a predictor for better knowledge among women. Participants with no history of breast cancer were less likely to have good breast cancer knowledge compared with those with a family history, (OR: 0.5, 95% CI: 0.5-0.6) and (OR: 0.6, 95% CI: 0.5-0.6) among men and women, respectively. More women (24%) than men (19%) knew of breast cancer screening programs, although the awareness was low in both genders. CONCLUSION: Awareness campaigns in Saudi Arabia, especially those aimed at men, remain critical to increase knowledge and change behavior toward early detection of breast cancer.

Frequency of sleep disorders in patients with rheumatoid arthritis.

Purpose: To determine the prevalence of common sleep problems among patients with rheumatoid arthritis (RA) and their relationship with the disease activity and quality of life. Patients and methods: The study sample consisted of 101 patients who attended a rheumatology clinic at a university hospital between October 2015 and May 2016. All subjects were clinically examined and interviewed by physicians using a questionnaire. The collected information included sociodemographic characteristics, the patients' medical histories, the Disease Activity Score (DAS28), the Berlin questionnaire to assess the risk of obstructive sleep apnea (OSA), the Epworth Sleepiness Scale to assess excessive daytime sleepiness (EDS), the Athens Insomnia Scale to assess insomnia, the International RLS Study Group score to diagnose restless legs syndrome (RLS), and the Health Assessment Questionnaire (HAQ) to assess the quality of life. Results: The mean age of the participants was 48.7±14.6 years, and 95% of the participants were females. Approximately 60% of the participants were in the remission/low category of disease activity, and the average DAS28 score was 3.3±0.8 years. The prevalence rates of insomnia, EDS, sleep disturbance, risk of OSA, and RLS were 63%, 20%, 20%, 37%, and 63%, respectively. Furthermore, the distribution of sleep disorders was not affected by the disease activity. The association between the HAQ and sleep disorders among the RA patients was not significant. Conclusion: Sleep disorders are common among RA patients and may require further attention by treating clinicians; nevertheless, these disorders are not associated with disease activity and do not affect the quality of life.

Uptake of breast and cervical cancer screening in four Gulf Cooperation Council countries.

In Gulf Cooperation Council States, there is limited information on national levels of mammography and Pap smear screening uptake. The aim of this study is to provide a baseline for national estimates for mammography and Pap smear screening and to explore associations between screening uptake and socioeconomic factors. The nationally representative World Health Survey Plus, implemented in 2008/2009 in Kuwait, Oman, Saudi Arabia and United Arab Emirates (UAE), was used. Uptake of mammography and Pap smear was estimated for each country, followed by the examination of associations between screening and a range of socioeconomic variables. Levels of breast and cervical cancer screening uptake within recommended intervals in all countries were low. The percentages of women aged 40-75 years who had a mammogram were 4.9% in Saudi Arabia, 8.9% in Oman, 13.9% in the UAE and 14.6% in Kuwait. The percentages of women aged 25-49 years who had a Pap smear test were 7.6% in Saudi Arabia, 10.6% in Oman, 17.7% in Kuwait and 28.0% in the UAE. Marital status, wealth, education, nationality and place of residence are associated with screening uptake, with the lower educated, poor and unmarried having the lowest percentages of uptake. The four Gulf Cooperation Council countries need to set clear targets and increase the proportion of women who have regular breast and cervical cancer screening examinations. Health education campaigns and awareness programmes that are fully integrated into the health system are required to ensure women use services that are available to prevent breast and cervical cancers.

Dental management of a patient with 22q11.2 deletion syndrome (22q11.2DS).

22q11.2 deletion syndrome (22q11.2DS) is one of the most common microdeletion syndromes, with an incidence of approximately 1/2000-1/4000 live births; it is thought to be mainly attributable to a de novo deletion. The clinical phenotype of this syndrome is highly variable. Certain craniofacial and oral features are common to most patients with 22q11.2DS, including a high prevalence of dental caries; abnormalities of tooth shape, eruption and number; and enamel defects such as hypomineralisation and hypoplasia. This report focuses on the dental features and management of an 8-year-old boy with 22q11.2DS. Dental treatments were carried out under general anaesthesia. In summary, facial dysmorphism and common dental manifestations are typically noticeable in patients with this syndrome. Therefore, dentists need to be aware of the dental features of this condition in order to refer them to the adequate specialists. Cooperation among and experience with different specialties are mandatory to improve quality of life for patients with 22q11.2DS.

Timing of maternal death: Levels, trends, and ecological correlates using sibling data from 34 sub-Saharan African countries.

Millennium Development Goal 5 has not been universally achieved, particularly in sub-Saharan Africa. Understanding whether maternal deaths occur during pregnancy, childbirth, or puerperium is important to effectively plan maternal health programs and allocate resources. Our main research objectives are to (1) describe the proportions and rates of mortality for the antepartum, intrapartum, and postpartum periods; (2) document how these trends vary by sub-region; and (3) investigate ecological correlations between these rates and maternal care interventions. We used data from the Demographic and Health Survey program, which comprises 84 surveys from 34 sub-Saharan African countries conducted between 1990 and 2014. We calculated age-standardized maternal mortality rates and time-specific maternal mortality rates and proportions, and we assessed correlations with maternal care coverage. We found high levels of maternal mortality in all three periods. Time-specific maternal mortality rates varied by country and region, with some showing an orderly decline in all three periods and others exhibiting alarming increases in antepartum and postpartum mortality. Ecological analysis showed that antenatal care coverage was significantly associated with low antepartum mortality, whereas the presence of a skilled attendant at childbirth was significantly associated with low postpartum mortality. In sub-Saharan Africa, maternal deaths occur at high rates in all three risk periods, and vary substantially by country and region. The provision of maternal care is a predictor of time-specific maternal mortality. These results confirm the need for country-specific interventions during the continuum of care to achieve the global commitment to eliminating preventable maternal mortality.

Thalassemia: a prevalent disease yet unknown term among college students in Saudi Arabia.

Thalassemia is a life-threatening blood disorder that has a high prevalence in Saudi Arabia despite the implementation of mandatory premarital testing and the availability of genetic counseling. This study aimed to assess college students' knowledge of thalassemia. A cross-sectional survey of a random sample of 920 senior students enrolled at King Abdulaziz University was conducted. A self-administered questionnaire was used to collect information about thalassemia and socio-demographic characteristics. Of the 920 students, 445 (48%) had ever heard of thalassemia. Despite the mandatory premarital testing for thalassemia, only 50% of married students stated having heard of the disease. The mean thalassemia knowledge score was 4.4 ± 2.2 out of a maximum of 12. Knowledge was significantly influenced by university faculty, gender, and education outside of Saudi Arabia. Those who had heard of thalassemia had misconceptions about the disease characteristics and pattern of inheritance such as associating thalassemia with low iron levels. A substantial proportion of the participants had a low knowledge of thalassemia. This lack of awareness requires a reassessment of the goals and success of the premarital testing program, including the genetic counseling services, and also indicates the importance of emphasizing thalassemia in school curricula and promoting and scaling up existing thalassemia campaigns in the region.

Patterns, knowledge, and barriers of mammography use among women in Saudi Arabia.

OBJECTIVES: To assess mammography utilization and knowledge, and to determine barriers associated with mammography utilization among Saudi women. Methods: We conducted a cross-sectional survey in 5 main geographic regions of Saudi Arabia from February 2015 to May 2015. The sample comprised women aged ≥40 years. Associations between socio-demographic factors and mammography use were tested using chi-square test. Predictors of mammography use were assessed by logistic regression. Results: A total of 3,245 women were surveyed, with 40% reporting ever having a mammogram. As indicated by the univariable analyses, older age (≥60 years), being single or divorced, having less than 2 children, not completing high school, and having a family history (hx) of breast cancer were significantly associated with never having a mammogram. Participants of older age (odds ratio [OR] 51-60 versus 41-50 = 0.6, 95% CI: 0.5-0.7 and OR less than 60 versus 41-50 = 0.5, 95% CI: 0.3-0.8), and divorced (OR divorced versus married = 0.6, 95% CI: 0.5-0.8] were less likely to have had a mammogram, while participants with no family hx of breast cancer (OR no family hx versus family hx = 1.5, 95%CI: 1.3-1.8)were more likely to have had a mammogram. Conclusion: Mammography utilization and knowledge are low in Saudi Arabia. Increasing the awareness of breast cancer screening through educational programs could help women overcome existing barriers and misconceptions.

Ultrasound Enhances Dentoalveolar Remodeling in an Ex Vivo Orthodontic, Ovariectomy-Induced Osteoporotic Model.

The aim of the study was to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on dentoalveolar structures during application of force to a cultured mandible slice taken from an ovariectomized rat model of osteoporosis. Rats were divided based on whether they had ovariectomy and/or LIPUS application into four groups: control osteoporosis group, control normal group, ultrasound-treated osteoporosis group and ultrasound-treated normal group. The mandibles were dissected, sliced and cultured before application of a 0.5-N force. Tissue specimens from five rats per group received LIPUS; the remaining rats served as untreated controls. Tissue sections were evaluated histologically and histomorphometrically. Osteoporosis significantly affected the alveolar bone without any effect on the dentin-pulp complex. LIPUS enhanced osteoporotic alveolar bone remodeling and increased cementum and predentin thickness. Furthermore, LIPUS application significantly increased odontoblast and periodontal ligament cell counts (p < 0.05) in both groups. Therefore, LIPUS enhances alveolar bone remolding and increases cementum and predentin formation in osteoporotic rat mandible slice organ cultures.

Assessment of knowledge about biobanking among healthcare students and their willingness to donate biospecimens.

BACKGROUND: Biobanks and biospecimen collections are becoming a primary means of delivering personalized diagnostics and tailoring individualized therapeutics. This shift towards precision medicine (PM) requires interactions among a variety of stakeholders, including the public, patients, healthcare providers, government, and donors. Very few studies have investigated the role of healthcare students in biobanking and biospecimen donations. The main aims of this study were (1) to evaluate the knowledge of senior healthcare students about biobanks and (2) to assess the students' willingness to donate biospecimens and the factors influencing their attitudes. METHODS: A cross-sectional study was conducted among senior healthcare students at King Abdulaziz University (KAU), Saudi Arabia. The data were obtained using a self-administered questionnaire in English. In addition to the respondents' biographical data section, the questionnaire assessed the respondents' general knowledge about biobanking, the factors influencing their willingness to donate biospecimens to biobanks and their general attitudes towards biomedical research. RESULTS: A total of 597 senior healthcare students were included in the study. The general knowledge score was 3.2 (±1.6) out of 7. Only approximately 44% and 27% of students were aware of the terms "Human Genome Project" (HGP) and "biobank," respectively. The majority of the students (89%) were willing to donate biospecimens to biobanks. Multiple factors were significantly associated with their willingness to donate, including their perceived general health (p < 0.001), past experience with both tissue testing (p < 0.04) and tissue donation (p < 0.001), biobanking knowledge score (p < 0.001) and biomedical research attitude score (p < 0.001). The main reasons for students' willingness to donate were advancement of medical research and societal benefits, whereas misuse of biospecimens and confidentiality breaches were the main reasons for a reluctance to donate. CONCLUSION: Despite their strong willingness to donate biospecimens, students exhibited a notable lack of knowledge about biobanking and the HGP. To expedite the transition towards PM, it is highly recommended to enhance healthcare curricula by including more educational and awareness programmes to familiarize students with OMICs technologies in addition to the scope of research and clinical applications.

Do children's previous dental experience and fear affect their perceived oral health-related quality of life (OHRQoL)?

BACKGROUND: Oral health-related quality of life (OHRQoL) has been used to describe the consequences of oral health conditions and treatments in children. A better understanding of OHRQoL and its relationship with dental fear and previous dental experience is necessary to improve children's oral health status. The aim of this study was to investigate the association of dental history and experience with dental fear and the OHRQoL of children aged 11 to 14 years. METHODS: A cross-sectional study was conducted using a multi-stage stratified sample of 1,312 middle school children. Information regarding OHRQoL was collected from the children using the Child Perceptions Questionnaire (CPQ11-14), and information regarding dental fear was collected using the Children's Fear Survey Schedule-Dental Subscale (CFSS-DS). Information on past dental experiences and sociodemographic data were collected from the parents using self-administered questionnaires. Dental examinations were performed to assess caries experience. RESULTS: The multivariable model indicated that dental fear was the strongest predictor of OHRQoL as the fearful children had on average CPQ11-14 scores that were 10 units higher than those of the non-fearful children. Regarding past dental experience, pain as the reason for the most recent dental visit was associated with poor OHRQoL, while receiving a filling during the previous dental visits was significantly associated with better OHRQoL. In addition, a larger number of siblings, a lower family income, a lower paternal education level, health problems and prior hospitalization were significantly associated with poor OHRQoL. CONCLUSION: This study identified that dental fear and some factors related to previous dental experience are associated with OHRQoL. In dental practice, children with dental fear should be identified, guided and treated early to avoid deterioration of their OHRQoL.

Prevalence of obesity in elementary school children and its association with dental caries.

OBJECTIVES: To investigate the prevalence of obesity among elementary school children and to examine the association between obesity and caries activity in the mixed dentition stage. Methods: This cross-sectional study was conducted in King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia between September 2014 and June 2015 using a multi-stage stratified sample of 915 elementary school children (482 boys, 433 girls) in Jeddah, Saudi Arabia. Anthropometric measurements, consisting of height, weight, body mass index (BMI), and waist circumference (WC), were obtained. Children were classified as underweight/healthy, overweight, or obese and as non-obese or obese according to their BMI and WC, respectively. Each child's caries experience was assessed using the decay score in the primary and permanent teeth. Results: Based on BMI, 18% of children were obese, 18% were overweight, and 64% were underweight/normal. Based on WC, 16% of children were obese, and 84% were non-obese. Girls had a significantly higher prevalence of obesity based on WC measurements (p less than 0.001), but not BMI. Children enrolled in private schools had a significantly higher prevalence of obesity (p less than 0.05) than those in public schools. For primary and permanent teeth combined, children with higher BMI and WC had a lower prevalence of caries (p less than 0.05). Conclusion: The prevalence of obesity was high among male and female elementary school children. Overall caries activity was inversely proportional to BMI and WC.

Data on survival of recent births as a source of child mortality estimates in the developing world: An assessment of census data.

In many less developed countries, household surveys collect full and summary birth histories to provide estimates of child mortality. However, full birth histories are expensive to collect and cannot provide precise estimates for small areas, and summary birth histories only provide past child mortality trends. A simple method that provides estimates for the most recent past uses questions about the survival of recent births in censuses or large household surveys. This study examines such data collected by 45 censuses and shows that on average they tend to underestimate under-5 mortality in comparison with alternative estimates, albeit with wide variations. In addition, the high non-sampling uncertainty in this approach precludes its use in providing robust estimates of child mortality at the country level. Given these findings, we suggest that questions about the survival of recent births to collect data on child mortality not be included in census questionnaires.

Knowledge of Genetics and Attitudes toward Genetic Testing among College Students in Saudi Arabia.

BACKGROUND: Genetic testing has been gradually permeating the practice of medicine. Health-care providers may be confronted with new genetic approaches that require genetically informed decisions which will be influenced by patients' knowledge of genetics and their attitudes toward genetic testing. This study assesses the knowledge of genetics and attitudes toward genetic testing among college students. METHODS: A cross-sectional study was conducted using a multistage stratified sample of 920 senior college students enrolled at King Abdulaziz University, Saudi Arabia. Information regarding knowledge of genetics, attitudes toward genetic testing, and sociodemographic data were collected using a self-administered questionnaire. RESULTS: In general, students had a good knowledge of genetics but lacked some fundamentals of genetics. The majority of students showed positive attitudes toward genetic testing, but some students showed negative attitudes toward certain aspects of genetic testing such as resorting to abortion in the case of an untreatable major genetic defect in an unborn fetus. The main significant predictors of knowledge were faculty, gender, academic year, and some prior awareness of 'genetic testing'. The main significant predictors of attitudes were gender, academic year, grade point average, and some prior awareness of 'genetic testing'. CONCLUSION: The knowledge of genetics among college students was higher than has been reported in other studies, and the attitudes toward genetic testing were fairly positive. Genetics educational programs that target youths may improve knowledge of genetics and create a public perception that further supports genetic testing.

Knowledge, attitudes, and behaviors of dentists regarding child physical abuse in Jeddah, Saudi Arabia.

A large proportion of child physical abuse cases go undocumented and unreported. Dentists can play an important role in identifying and reporting these cases, but little has been reported about this issue in Saudi Arabia. The aims of the study were to (1) assess dentists' knowledge of child physical abuse, (2) assess dentists' attitudes towards child physical abuse, and (3) assess the behaviors of dentists in identifying and reporting child physical abuse. A cross-sectional survey of pediatric dentists, pediatric dentistry residents, and dental interns practicing at all of the dental schools in Jeddah, Saudi Arabia was conducted using an anonymous, self-administered questionnaire. The participants in current study demonstrated insufficient knowledge of the signs and symptoms of child physical abuse, actions that should be taken in suspected cases, circumstances in which to report such cases, and the legal authorities to which they should be reported. The attitudes of participants towards detecting and reporting cases were generally positive. Only 11% of the participants had suspected a case of child abuse, and only 3% of them reported it. Lack of knowledge about referral procedures and fear of anger from family members were the main causes of underreporting. In conclusion, this study showed that dentists have insufficient knowledge about child physical abuse but positive attitudes towards their role in detecting and reporting it. This topic should be covered and emphasized in dental schools' curricula, and healthcare and academic institutes must have a clear protocol to be followed if a case of abuse is suspected.