Organ transplantation in Nepal: Ethical, legal, and practical issues.

In Nepal, live donor organ transplantation is only 14 years old with the first successful kidney transplant made in 2008 and a successful liver and bone marrow transplant made in 2016. However, transplantation of cadaveric cornea dates back to 1998. There are still no cases of animal-to-human organ transplantation in Nepal. There are stringent laws to regulate human body organ transplantation in Nepal which are amended from time to time. However, there is a racket of human traffickers who lure rural people from this low-income country into the illegal organ trade. Furthermore, there is a substantial lack of awareness of organ donation among the general public. This article focuses on the stipulations of ethical, legal, and practical issues of obtaining organs procured from living and brain-dead donors that support the process of transplantation in Nepal. In addition, the article also explores the legal and practical issues of organ trafficking and organ donation awareness in Nepal on the basis of factual data and findings from other studies.

Causes of perinatal mortality and associated maternal factors in a tertiary referral hospital of Gandaki province of Nepal: a cross-sectional study from a hospital-based surveillance.

BACKGROUND: Perinatal and neonatal death rates have decreased recently but it still poses a major challenge to the health system of Nepal. The study was conducted to explore the pattern and causes of perinatal deaths. METHODS: This was a descriptive cross-sectional study conducted from September 2020 to June 2021 using the data of perinatal mortality of three years from June 15, 2017, to June 14, 2020. The demographic parameters of the mother consisted of maternal age, place of residence, ethnicity, antenatal care, the number of antenatal visits, gravida, gestational weeks, and the mode of delivery. The causes of death were categorized into fetal and early neonatal deaths. Fetal deaths were further classified as macerated stillbirth and fresh stillbirth. The attribution of the causes of deaths to fetal/neonatal and maternal conditions was done as per the guidelines of the WHO application of ICD-10 to deaths during the perinatal period. RESULTS: There were a total of 145 perinatal deaths from 144 mothers among which 92 (63.5%) were males. Ten mothers (6.9%) had not sought even single antenatal care, whereas 32 (22.9%) had visited for antenatal care one to three times. At least one cause of death was identified in 114 (78.6%) and remained unknown in 31(21.4%) cases. Among the 28 cases of macerated stillbirths, the cause of death was not identified in 14 (50%), whereas preterm labor was attributed to the cause of death in four (14.3%). In 53 of the fresh stillbirths, intrapartum hypoxia was identified as the cause of death in 20 (37.7%) cases, preterm labor in nine (17%), and was left unknown in 15 (28.3%) cases. Among the 64 early neonatal deaths, prematurity was attributed as the cause of death in 32 (50%) cases, birth asphyxia, and infections each in 11 (17.2%). CONCLUSIONS: The perinatal mortality surveillance system identified the causes of death in most of the cases in our observation. Prematurity was identified as the commonest cause of early neonatal deaths and preterm labor was the commonest cause responsible for perinatal deaths overall. The perinatal deaths should be investigated to establish exact causes of deaths which can be useful to develop prevention strategies.

The effectiveness of online team-based learning in introduction to medical ethics education for medical students at a medical college of Nepal: a pilot study.

BACKGROUND: The effectiveness of online classes is always a concern, and it can be overcome by opting for active learning strategies like team-based learning (TBL). This study was conducted to find out the effectiveness of online TBL as an active learning strategy. We also aimed to explore the satisfaction and perception of students toward TBL. METHODS: This is a mixed-method study conducted among 29 third-year Bachelor of Medicine and Bachelor of Surgery (MBBS) students of Gandaki Medical College using purposive sampling method in the duration of January to September 2021. Three two hours online TBL sessions were used for teaching introduction to medical ethics. The individual readiness assurance test (IRAT) scores were compared to the group readiness assurance test (GRAT) scores to evaluate the effect of TBL through cooperative learning. Learner reactions and satisfaction of students towards TBL were assessed using a validated questionnaire comprising of a five-point Likert scale. An open-ended question asking the participants to describe their overall experience of the TBL sessions was also included to explore their perceptions towards TBL. The data were collected using Google form and exported to Microsoft Excel and the quantitative data were then analyzed using Statistical Package for Social Sciences (SPSS) version 16.0. To check the normal distribution of the data, Kolmogorov Smirnov and Shapiro-Wilk test were used. Non-parametric tests were used for the non-normally distributed data. P value of < 0.05 was regarded as significant. Thematic analysis was conducted for the qualitative data. RESULTS: The median GRAT scores were significantly higher (p = 0.006 in TBL 1 and 0.001 in TBL 2) than IRAT scores. Learner reactions toward TBL sessions were positive as shown by the mean scores which were in the range of 3.59 to 4.66. Five themes were generated from the codes: "effective learning method", "positive experience", "gained knowledge", "expression of gratitude" and "the way of conduction of the sessions". CONCLUSION: Online TBL in medical ethics was effective as a teaching learning tool in our setting. The students were satisfied with the learning process and rated the learning strategy positively.

Burden of Serious Bacterial Infections and Multidrug-Resistant Organisms in an Adult Population of Nepal: A Comparative Analysis of Minimally Invasive Tissue Sampling Informed Mortality Surveillance of Community and Hospital Deaths.

BACKGROUND: Bacterial diseases are the leading cause of mortality globally, and due to haphazard use of antibiotics, antimicrobial resistance has become an emerging threat. METHODS: This cross-sectional observational study utilized a minimally invasive tissue sampling procedure to determine the cause of death among an adult population. Bacterial cultures (blood, cerebrospinal fluid, lung tissue) and antibiotic susceptibility were evaluated, and the results were compared between community and hospital deaths. RESULTS: Of 100 deceased persons studied, 76 (76%) deaths occurred in the community and 24 (24%) in the hospital. At least 1 bacterial agent was cultured from 86 (86%) cases; of these, 74 (86%) had a bacterial disease attributed as the primary cause of death, with pneumonia (35, 47.3%), sepsis (33, 44.6%), and meningitis (3, 4.1%) most common. Of 154 bacterial isolates (76.6% from the community and 23.4% from the hospital) detected from 86 culture-positive cases, 26 (16.8%) were multidrug-resistant (MDR). Klebsiella species were the most common (13 of 26) MDR organisms. The odds of getting an MDR Klebsiella infection was 6-fold higher among hospital deaths compared with community deaths (95% confidence interval [CI], 1.37-26.40; P = .017) and almost 23-fold higher (CI, 2.45-213.54; P = .006) among cases with prior antibiotic use compared to those without. CONCLUSIONS: High incidence of serious bacterial infections causing death of adults in the community, with most MDR organisms isolated from hospitalized cases, calls for robust surveillance mechanisms and infection prevention activities at the community level and evidence-driven antibiotic stewardship in healthcare settings.

Building Capacity and Infrastructure at Hospitals Implementing Minimally Invasive Tissue Sampling: Experience and Lessons Learned From Nepal, Rwanda, and Tanzania.

BACKGROUND: Minimally invasive tissue sampling (MITS) is a useful tool to determine cause of death in low- and middle-income countries (LMICs). In 2019 the MITS Surveillance Alliance supported the implementation of small-scale postmortem studies using MITS in several LMICs. METHODS: In this article we describe the preparations, challenges, and lessons learned as part of implementing MITS across 4 study sites in 3 countries: Nepal, Rwanda, and Tanzania. We describe the process for building capacity to conduct MITS, which consisted of training in MITS sample collection, individual site assessment to determine readiness and gaps prior to implementation, site visits as sites began implementation of MITS, and feedback based on remote evaluation of histology slides via an online portal. RESULTS: The 4 study sites each conducted 100 MITS, for a total of 400. All 4 sites lacked sufficient infrastructure and facilities to conduct MITS, and upgrades were required. Common challenges faced by sites included that clinical autopsies were neither routinely conducted nor widely accepted. Limited clinical records made cause of death determination more difficult. Lessons learned included the importance of sensitization of the community and medical staff to MITS to enhance understanding and increase consent. CONCLUSIONS: The study sites accomplished MITS and utilized the available support systems to overcome the challenges. The quality of the procedures was satisfactory and was facilitated through the organized capacity-building programs.

Cost Evaluation of Minimally Invasive Tissue Sampling (MITS) Implementation in Low- and Middle-Income Countries.

BACKGROUND: Low- and middle-income countries (LMICs) face disproportionately high mortality rates, yet the causes of death in LMICs are not robustly understood, limiting the effectiveness of interventions to reduce mortality. Minimally invasive tissue sampling (MITS) is a standardized postmortem examination method that holds promise for use in LMICs, where other approaches for determining cause of death are too costly or unacceptable. This study documents the costs associated with implementing the MITS procedure in LMICs from the healthcare provider perspective and aims to inform resource allocation decisions by public health decisionmakers. METHODS: We surveyed 4 sites in LMICs across Sub-Saharan Africa and South Asia with experience conducting MITS. Using a bottom-up costing approach, we collected direct costs of resources (labor and materials) to conduct MITS and the pre-implementation costs required to initiate MITS. RESULTS: Initial investments range widely yet represent a substantial cost to implement MITS and are determined by the existing infrastructure and needs of a site. The costs to conduct a single case range between $609 and $1028 per case and are driven by labor, sample testing, and MITS supplies costs. CONCLUSIONS: Variation in each site's use of staff roles and testing protocols suggests sites conducting MITS may adapt use of resources based on available expertise, equipment, and surveillance objectives. This study is a first step toward necessary examinations of cost-effectiveness, which may provide insight into cost optimization and economic justification for the expansion of MITS.

Application of abbreviated injury scale and injury severity score in fatal cases with abdominopelvic injuries.

In forensic casework, investigation of injury severity is important in evaluating the mortality, occasionally in terms of the adequacy of clinical management. The study was conducted with an objective to study the relationship of severity of the injuries using Abbreviated Injury Scale and Injury Severity Score (ISS) with survival period and place of death among fatal cases with abdominopelvic trauma.The total number of cases studied was 80. The injuries in all the body parts were allotted using the Abbreviated Injury Scale 2005, Update 2008, and the ISS was calculated. The male/female ratio was 4:1, and the mean (SD) age was 30.76 (15.2) years. The cause of trauma was road traffic accidents in 82.5% of the cases. The median duration of survival was 2 hours. The mean (SD) ISS was 38.90 (14.89). Abbreviated Injury Scale scores of 5 and 4 were the most common in the region. With increase in the ISS, the survival period was decreased. There was a highly significant difference between the mean ISS of the victims who died prehospital and that of who died in the emergency department (P < 0.005). The mean ISS of the victims who died in the emergency department and of those who died in the ward, intensive care unit, or after discharge was also significantly different (P < 0.05).Although the cases with more severe injuries died sooner, there should be provision of treatment on the spot without delay. More time taken to start the treatment increases the fatalities.

Knowledge and practices of plagiarism among journal editors of Nepal.

BACKGROUND: This study was conducted to assess the knowledge and ongoing practices of plagiarism among the journal editors of Nepal. METHODS: This web-based questionnaire analytical cross-sectional was conducted among journal editors working across various journals in Nepal. All journal editors from NepJOL-indexed journals in Nepal who provided e-consent were included in the study using a convenience sampling technique. A final set of questionnaires was prepared using Google Forms, including six knowledge questions, three practice questions (with subsets) for authors, and four (with subsets) for editors. These were distributed to journal editors in Nepal via email, Facebook Messenger, Viber, and WhatsApp. Reminders were sent weekly, up to three times. Data analysis was done in R software. Frequencies and percentages were calculated for the demographic variables, correct responses regarding knowledge, and practices related to plagiarism. Independent t-test and one-way ANOVA were used to compare mean knowledge with demographic variables. For all tests, statistical significance was set at p < 0.05. RESULTS: A total of 147 participants completed the survey.The mean age of the participants was found to be 43.61 ± 8.91 years. Nearly all participants were aware of plagiarism, and most had heard of both Turnitin and iThenticate. Slightly more than three-fourths correctly identified that citation and referencing can avoid plagiarism. The overall mean knowledge score was 5.32 ± 0.99, with no significant differences across demographic variables. As authors, 4% admitted to copying sections of others' work without acknowledgment and reusing their own published work without proper citations. Just over one-fifth did not use plagiarism detection software when writing research articles. Fewer than half reported that their journals used authentic plagiarism detection software. Four-fifths of them suspected plagiarism in the manuscripts assigned through their journal. Three out of every five participants reported the plagiarism used in the manuscript to the respective authors. Nearly all participants believe every journal must have plagiarism-detection software. CONCLUSIONS: Although journal editors' knowledge and practices regarding plagiarism appear to be high, they are still not satisfactory. It is strongly recommended to use authentic plagiarism detection software by the journals and editors should be adequately trained and update their knowledge about it.

Evaluation of SARS-Cov-2 neutralizing antibody among Sinopharm Vero Cell (BBIBP-CorV) vaccinated medical students.

BACKGROUND: Information regarding seropositivity and vaccine efficacy among medical students is scarce. This study aims to detect the status of SARS-CoV-2 neutralizing antibodies among the Sinopharm's Vero Cell (BBIBP-CorV) vaccinated medical students. MATERIALS AND METHODS: A prospective, cross-sectional study was carried out among medical students of Gandaki Medical College Teaching Hospital, Pokhara, Nepal from March through August 2022. The level of SARS-CoV-2 serum- neutralizing IgG antibody was measured and its relation with participants' age and sex, duration of vaccination, and any comorbid condition was determined. RESULTS: A total of 110 medical students were included in the final analysis, the majority being females (65.5%) and the mean age is 23.1 ± 3.2 years. Most of the students (96.4%) had neutralizing antibodies against SARS-CoV-2. Among the 29 (26.36%) students who received a booster dose, the positivity rate was 100%. The mean IgG levels were 9.57 ± 9.58 µg/ml and 2.91 ± 2.47 µg/ml among students receiving an additional booster dose and among those not receiving it, respectively. In the cohort receiving a booster dose of the vaccine, the average value of neutralizing IgG antibodies was high. In contrast, the ones not receiving it, the titers were low and showed a declining trend. CONCLUSION: Though the dose strategy of the Sinopharm vaccine is effective, booster vaccination may be an important strategy to ensure protection among medical students, who are at high risk of COVID-19 due to constant patient exposure during their training. Further studies should assess vaccine efficacy among individuals who received other vaccines as well.

Living with bronchial asthma: A qualitative study among patients in a hill village in Nepal.

INTRODUCTION: Bronchial asthma continues to be a problem in the Himalayan country of Nepal. This study explored the impact of bronchial asthma on patients' lives in a hill village in Syangja district, Nepal, and obtained information about the perceived impact of the illness, knowledge of the disease, self-care behaviors and treatment among patients. MATERIAL AND METHODS: The study site is the village of Jyamire (located at an elevation between 900 to 1200 m) Syangja district. Individuals suffering from asthma residing in the village aged 18 years or above were included. Semi-structured interviews were conducted face-to-face with the respondents at their homes using an interview guide. The interviews were audio recorded, transcribed in the Nepali language, and then translated into English for further analysis. RESULTS: Most participants were female, between 18 to 60 years of age, and housewives. Most houses were built of mud and poorly ventilated. Gas was used for cooking though firewood was also used. Most used to get an average of three serious attacks a year both during winter and summer. The themes that emerged were the number and seasonal variation in attacks, the perceived effect of asthma on their lives and social interactions, the knowledge of the interviewee about the disease, the impact of asthma on their socioeconomic status, and treatment and self-care behaviors. Residing in a hill village required them to walk up and down several times a day and the disease seriously impacted their lives. The smoke produced during different ceremonies and during cooking also worsened their asthma. CONCLUSION: Findings suggest, the existence of multiple factors, a few unique to Nepal contributing to poor asthma control. Though the recent socioeconomic improvement has led to improved prevention and treatment options, asthma seriously affected the patients.

Determination of causes of adult deaths using minimally invasive tissue sampling in Gandaki province of Nepal: a multicenter hospital-based study.

BACKGROUND: Minimally Invasive Tissue Sampling (MITS) has been successfully used to establish the cause of death in low- and middle-income countries, mostly in stillbirths and neonates. The objective of this study was to determine the causes of death among adults using MITS in the Gandaki province of Nepal and to find out the contribution of MITS to identify the causes of death. METHODS: A multicentric hospital-based pilot study was conducted to enroll 100 cases of adult deaths. The specimens of cerebrospinal fluid, blood, brain, lungs, and liver tissue were collected utilizing MITS. These specimens underwent standard histopathological, serological, and microbiological analyses. The findings from MITS, and if available, clinical records and forensic autopsy findings were compiled and the cause of death panel identified the causes of death. The final cause of death allocated to each case was based on the WHO International Medical Certificate of Death. RESULTS: Among a total of 100 cases enrolled during the study period, infectious cause attributed to the immediate cause of death in 77 (77%), cardiovascular in 10 (10%), neurological in 8 (8%), malignancy in two (2%), and gastrointestinal and hepatobiliary cause in one (1%) case. The mean age of the cases was 50.8 ± 15.9 years and 76 (76%) were males. MITS established the cause of death in the causal chain of events in 81(81%) cases and identified the cause of death significantly more with infectious than non-infectious causes (p < 0.001). CONCLUSIONS: MITS was useful in establishing the cause of death in the majority of adult deaths and the most common cause was infectious disease. Our findings suggest that MITS can be a valuable and alternative tool for mortality surveillance in low-resource settings, where complete diagnostic autopsies are less accepted or less prioritized.

Fatal toxicity due to locally produced unlabeled alcohol consumption: An illustrative case series from Nepal.

Locally prepared liquor, which is not standardized or regulated, though cheap can contain various toxic ingredients and even may be fatal. We report a case series of four adult males who died within 18.5 h due to the effect of local liquor consumption in a hilly district of Gandaki Province of Nepal. Methanol toxicity due to illicitly produced alcohol consumption should be managed with adequate supportive care and administration of specific antidotes such as ethanol or fomepizole. Liquor production should be standardized, and quality checks should be done before the sale for consumption.

Imidacloprid poisoning in a young female: a case report.

BACKGROUND: Imidacloprid, a neonicotinoid insecticide, is widely used in agricultural settings. Consequently, cases of accidental and suicidal poisoning are increasingly seen in clinical practice. Although cases with varied clinical presentations and toxicological profiles have been reported, standard management principles are lacking. CASE PRESENTATION: We present a case of Imidacloprid poisoning in a 25-year-old previously healthy indigenous Tamang female without a classic toxidrome requiring ventilatory support, complicated by a prolonged neuropsychiatric sequela. CONCLUSIONS: Although uncommonly reported, imidacloprid toxicity may lead to life-threatening complications and hence should be suspected in cases of unidentified poisoning with a relevant toxidrome. Vigilance on the part of treating physicians plays a crucial role in appropriate management.

Forensic medicine in Nepal: Past, present, and future.

The practice of autopsy for medico-legal purposes in Nepal was started during the 1960s when jail doctors used to perform the autopsy. However, the medico-legal service in clinical forensic settings is less than three decades old. In Nepal, a police inquest is done for all the unnatural deaths who then subjects the body for medico-legal autopsy at the nearest government hospital. Except for a few hospitals where forensic medicine experts are available, the medico-legal work in Nepal is done by medical officers most of who have no forensic qualification. For a country with a population of nearly 30 million, there are less than 50 forensic medicine experts who are currently practicing. There are 21 medical colleges in Nepal each having a forensic medicine department engaged in teaching forensic medicine as a separate subject in the undergraduate medical curriculum. Currently, postgraduate courses are also offered in the country. However, there is a lack of uniformity in the curriculum set by different universities for both postgraduate and undergraduate education. Due to the lack of forensic medicine faculty members in some medical colleges, the undergraduate students of medicine have to undertake the exam being taught by some guest lectures and without witnessing a single medico-legal autopsy. To standardize the medico-legal services and forensic medicine education, the Medico-Legal Society of Nepal was established with an aim to conduct regular seminars, conferences, and CMEs and also various training programs for the non-forensic medicine experts who deal with medico-legal cases. This paper aims to provide a brief history of medico-legal practice in Nepal, the current situation, and future plans to improve the medico-legal service of the country.

Pattern of Deaths among Women of Reproductive Age in Major Autopsy Centres of Capital Cities of the Seven Provinces of Nepal.

BACKGROUND: The females in the reproductive age group are vulnerable to injuries and diseases. There is no reliable evidence of the pattern of deaths in reproductive age group females from Nepal. This study was conducted to explore the patterns of deaths of females of the reproductive age group in Nepal. METHODS: A multicentric quantitative cross-sectional study was conducted among the 611 deceased females of age 15 to 49 years who had undergone medico-legal autopsy in major autopsy centers of the capital cities of seven provinces of Nepal in a duration of one year. The demographic, clinical, and causes of death data were retrieved from the records and analyzed. The intentional and unintentional causes were compared with the marital status, age groups, ethnicity, and deceased of rural and urban communities. RESULTS: Female reproductive age group deaths constituted 611 (20·64%) of the total autopsies. Suicide was the most common manner of death (413, 67·59%) followed by accident (121, 19·80%). The most common cause of suicide was hanging (258, 62·47%) followed by poisoning (149, 36·08%) whereas road traffic accident (72, 59·5%) was the commonest cause of accidental death. Intentional deaths were associated with higher risk to the females of younger age groups (p<0·001), ethnicity of the hilly region (p<0·001), and unmarried women (p=0·001). CONCLUSIONS: Suicide was the commonest manner of death among the autopsies of females of the reproductive age group in Nepal. Appropriate preventive strategies need to be developed to uplift the overall health, socioeconomic status, and general wellbeing of the females.

Unnatural Deaths among Autopsy Cases Brought at Tertiary Care Hospital of Western Nepal during COVID-19 Pandemic Period: A Descriptive Cross-sectional Study.

INTRODUCTION: The outbreak of COVID-19  as changed patterns of mortality in different setups. The rate of suicide has increased in some countries during the pandemic while the overall death rates  have decreased. The study was conducted with objective to find out the prevalence of unnatural deaths among the autopsy cases brought at tertiary care hospital during COVID-19 pandemic period. METHODS: This is a descriptive cross-sectional study using the records of the medico legal autopsies conducted from 24th March 2020 to 23rd August 2020 during the COVID-19 pandemic in Pokhara Academy of Health Sciences. Ethical approval was taken from Institutional Review Committee of Pokhara Academy of Health Sciences (Reference number 28.2077/78). Whole sampling method was used. Records which were available were included in the study whereas those cases whose complete records were not available were excluded. Point estimate at 95% confidence interval was calculated along with frequency and proportion for binary data. RESULTS: Out of 188 deaths studied at the autopsy during the COVID-19 pandemic period, the prevalence of unnatural deaths was 147 (78.19%) (71.04-85.33 at 95% Confidence Interval). Among these deaths, 109 (74.14%) were males and 38 (25.85%) were females. Suicide was the most common manner attributing to 78 (53.06%) of the unnatural deaths. CONCLUSIONS: The prevalence of suicide was more than those demonstrated by earlier observations in similar settings before the pandemic period. Suicidal deaths were more common during the COVID 19 pandemic. This is an indicator of frustration of the people and necessary steps have to be taken to decrease such deaths in similar conditions to come.

A case report on air bag induced skin burn in a road traffic injury: An experience.

INTRODUCTION: Air bag deployment after high velocity trauma has been associated with burn injuries. So, we aimed to present a clinical case report associated with air bag deployment experienced by the author himself. CASE PRESENTATION: The author was driving a hatchback car which collided head on with the high speeding vehicle from opposite direction. He sustained a burn injury around 4 × 3 cm in size in the flexor aspect of right forearm involving epidermis and some part of dermis which was superficial partial thickness in nature when the air bag deployment was observed at both the sides. Burn injury was healed with topical antibiotics and regular dressings with no any complications. DISCUSSION: Air bag deployment has always been a safety measures for the road traffic injuries but the safety comes with a cost. It has been associated with burn injuries, especially chemical induced, thermal and frictional burns. Timely diagnosis of type of burn and intervention is required in order to minimize complications associated with burns. CONCLUSION: Though burn injuries associated with air bag deployment cause less harm or complications, the companies making such commodities should explore the further options in order to develop burn injury free vehicle safety.

Age Estimation from Attrition of Permanent Molars.

BACKGROUND: The average stage of attrition in permanent first and second molars is an established method of age estimation in the adult population. The study was conducted with an objective of age estimation from the average stage of attrition of permanent molars. METHODS: A total of 451 individuals of age more than 20 years were examined. Nepalese individuals with intact first and second permanent molars in the maxillary and mandibular arch on either side were included. The average stage of attrition of the maxillary first and second permanent molars on either side was calculated and subjected to regression analysis to derive equations. RESULTS: Among a total of 451 participants, 231 (51.22%) were females and 220 (48.78%) males, with a mean age of 44.3 ± 13.9 years. There was a strong correlation between age and average stage of attrition of molars. The correlation was stronger for upper molars compared to the lowers. Additionally, the mean of the difference between real age and estimated age was lower for maxillary compared to mandibular molars. Compared to age estimation by univariable regression, multivariable regression had greater accuracy. Similarly, estimation of age from maxillary molars was more accurate as compared to mandibular (difference in years: 3.82 ± 3.03 for maxillary molars and 5.17 ± 4.2 for mandibular molars). CONCLUSIONS: Maxillary teeth are better for age estimation and using both maxillary first and second permanent molars gives better accuracy.

Risk Perception and Hesitancy Toward COVID-19 Vaccination Among Healthcare Workers and Staff at a Medical College in Nepal.

PURPOSE: The study was conducted to explore the perception of healthcare workers and staff towards the risk of COVID-19 vaccination and to study vaccine hesitancy amongst them. METHODS: A total of 266 healthcare workers working in a medical college in Nepal were studied using a questionnaire consisting of three sections: demographics, experiences and perception of COVID-19, and COVID-19 vaccine safety. Data were analyzed using IBM SPSS version 26. The total perception score was calculated by noting respondent's agreement with a set of eleven statements using a Likert-type scale. Non-parametric tests (Mann-Whitney U and Kruskal-Wallis) were used for analysis (p<0.05). RESULTS: Altogether, 13.9% of respondents had been diagnosed COVID-19 positive prior to the survey. Many considered themselves to be at increased risk of contracting COVID-19. Only over one third (38.3%) were willing to be vaccinated. The most common reason for refusal/hesitancy was concern about vaccine safety. The median (interquartile range) total perception score was 36 (4) (maximum possible score=55). The score was significantly higher among those who had been diagnosed COVID positive, those who perceived the pandemic as being moderate or severe and among those willing to be vaccinated. CONCLUSION: Addressing doubts related to vaccine safety and providing more data on the safety of vaccine may be helpful in overcoming hesitancy.

Perception of Problem Based Learning by Undergraduate Dental Students in Basic Medical Science.

BACKGROUND: Problem based learning is self-directed form of learning. Problem of Diabetes Mellitus was chosen. The objective was to evaluate perception of students towards Problem based learning and test their understanding. METHODS: A descriptive study was conducted from November 2019 till October 2020. An online Problem based learning session of a week was conducted to second-year Bachelors of Dental Surgery students using online applications. Tutors facilitated students in a group of five to six each. Pre-post testing of evaluation questions was done. At end of session, feedback of students on Problem based learning and tutor of Problem based learning were received with 'Dolmans and Schmidt' and 'Dolmans and Ginns' questionnaire. RESULTS: There was increase in correct response in nine out of 12 evaluation questions. Most students agreed to influence of discussion, content tested, course objectives, lectures, tutor and reference literature. The students agreed that tutors facilitated active, self-directed, contextual and collaborative learning. CONCLUSIONS: The influence of discussion among participants, content tested, course objectives, reference literature during the Problem based learning session were agreed upon by majority of the students. The tutors' role was accepted by participants in terms of stimulation to self-directed, active, collaborative and contextual learning.