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Negative mental health outcomes associated with disaster exposure can increase risks of interpersonal and self-directed violence. However, the link between disaster exposure and increased incidence in violent deaths is not clearly established. The objective of this work is to assess the incidence of violent deaths in non-disaster and disaster periods across five distinct disaster events. This study uses an ecological, quasi-experimental design to assess violent deaths in pre-disaster and disaster periods across five U.S. states (e.g., North Carolina, Oregon, Oklahoma, Wisconsin, and Colorado) with federally declared disasters resulting from natural hazards (e.g., flood, wildfire, tropical cyclone, storms). Deaths recorded in the National Violent Death Reporting System were used to describe violent deaths with injuries occurring three-months prior to and after disaster onset. Poisson regression with population offsets and fixed effects was used to calculate incidence rate ratios for disaster affected and unaffected counties within the same state, comparing violent death rates in disaster periods with non-disaster periods. Most of all deaths were White (80.75%), male (76.87%), and unmarried (65.03%); the median age of decedents was 41.5 years (IQR: 28-55). Overall, the incidence of violent deaths was consistent between disaster and non-disaster periods for both affected (IRR: 0.985; 95% CI: 0.760-1.276) and unaffected counties (IRR: 1.062; 95% CI: 0.975-1.158). Rate ratios were heterogenous but not significant across individual disasters, with only non-suicide and all-cause violent deaths increasing significantly following severe storms and flooding in Wisconsin for counties ineligible for public assistance. The results of this study are consistent with the heterogenous findings on violent deaths and disasters throughout literature. As disasters become more frequent and severe, it is important to further consider the relationship between disaster impacts and negative mental health outcomes, including violent deaths.

Background The oral health of refugees and asylum seekers is understudied. However, oral health has important implications for overall health and wellbeing. This study addresses this gap by characterizing oral health care utilization in Médecins du Monde (MdM) clinics across mainland Greece from 2016 – 2017. Methods A retrospective cross-sectional study design was used to estimate proportional morbidities for caries, extraction, developmental, periodontal disease, preventive, and other oral health outcomes. The association between physical health conditions and consultations of interest – upper respiratory tract infections (URTIs) and reproductive health consultations – and oral health were compared using odds ratios (OR) and 95% confidence intervals (CIs). Oral health outcomes between Afghans and Syrians were compared using odds ratios and 95% CIs. Results Caries (39.44%) and extractions (28.99%) were highly prevalent in our study population. The utilization of preventive dental consultations (37.10%) was high, particularly among males. Individuals with at least one upper respiratory tract infection (OR = 1.52; 95% CI: 1.30 – 1.77; Or = 1.90; 95% CI: 1.53 – 2.36) and women and girls with reproductive health consultations (OR = 1.30; 95% CI: 1.03 – 1.66; OR = 2.03; 95% CI: 1.49 – 2.76) were more likely to have any dental or caries specific consultations. The observed patterns in oral health needs differed between Afghans and Syrians, with Afghans more likely to have preventive screenings and less likely to have caries, extractions, or other conditions. Conclusions Displaced populations utilizing MdM dental clinics had high levels of oral health needs, particularly for caries and extractions. The connection between oral and overall health was seen in the study population, and these findings reinforce the public health importance of oral health for improving health and wellbeing of displaced populations. Evidence-informed policy, practice, and programming inclusive of oral health are needed to address both oral and overall health of refugees and asylum seekers in Greece. Future research should investigate not only oral health care needs but also knowledge and beliefs that inform utilization patterns among displaced populations.

Background Despite the importance of baseline health data for evidence-informed decision-making, these data are rarely available for displaced populations. At the height of the European refugee crisis, most of those seeking asylum in Europe were from regions with high prevalences of communicable and non-communicable diseases. To create an epidemiologic profile for refugees in camps on mainland Greece, this study assessed the prevalence of 11 communicable and non-communicable diseases among refugees utilizing Médecins du Monde (MdM) in-camp clinics. Methods The proportional morbidity of selected diseases among individuals utilizing MdM services were determined from data collected at refugee camp clinics on mainland Greece from April 2016 - July 2017. Overall and age-specific proportional morbidities were reported. Differences in disease burden among refugees from the largest sending countries - Afghanistan and Syria - were compared using proportional morbidity ratios and 95% confidence intervals. Patterns in results were compared with disease burden estimates in sending countries and with findings from comparable settings. Results Respiratory tract infections (RTIs) were the most prevalent outcome. Among RTIs, upper RTIs were most common, with a proportional morbidity of nearly 40%; throughout the study period, over 46% of children under 18 years had at least one upper RTI consultation. Musculoskeletal conditions (3.64%), were the most prevalent non-communicable outcome, followed by hypertension (2.21%) and asthma (1.28%). Afghans were 31.68% more likely than Syrians to have a consultation for at least one condition (PR: 1.32; 95% CI: 1.25, 1.39). The proportional morbidity of RTIs was comparable to sending countries, but there was a comparatively lower burden of other conditions among refugees than literature estimates from sending countries. Conclusion Refugees utilizing MdM clinics in camps had higher burdens of communicable diseases - predominantly RTIs - relative to non-communicable diseases. Non-communicable disease burdens were comparatively lower than reported prevalences from in-country populations. These findings can be attributed to a range of considerations including differences in demographic profiles between sending countries and refugee populations and missed opportunities for utilizing clinical care. Further investment is needed to capture the health profiles of displaced populations to support evidence-informed decision-making processes in humanitarian emergency responses.

Communicable disease risk is high in refugee camps and reception centers. To better understand the risks for communicable disease diagnoses among refugees and asylum seekers, this study assesses individual- and camp-level risk factors among individuals utilizing Médecins du Monde clinics in four large refugee camps—Elliniko, Malakasa, Koutsochero, and Raidestos—on mainland Greece between July 2016 and May 2017. Descriptive statistics are reported for the demographic characteristics of the study population and for communicable disease burdens within the four camps—Elliniko, Malakasa, Raidestos, and Koutsochero. A hierarchical generalized linear model was used to assess risk factors for communicable disease diagnoses while accounting for individual-level clustering. This study shows marginal patterns in risk factors for communicable disease. Males had marginally higher risk of communicable disease diagnosis than females (OR = 1.12; 95% CI 0.97—1.29), and increased age was more protective against communicable disease for females (OR = 0.957; 95% CI 0.953—0.961) than for males (OR = 0.963; 95% CI 0.959—0.967). Communicable disease risk was significantly different between camps, with Elliniko (OR = 1.58; 95% CI 1.40–1.79) and Malakasa (OR = 1.43; 95% CI 1.25–1.63) having higher odds of communicable disease than Raidestos. The demographic and epidemiologic profiles of displaced populations differ across settings, and epidemiologic baselines for displaced populations are fundamental to evidence-informed provision of humanitarian aid. Further, while influences and risks for negative health outcomes in complex emergencies are broadly, the causal mechanisms that underpin these relationships are not as well understood. Both practitioners and researchers should engage with further research to elucidate the mechanisms through which these risks operate among displaced populations, including multilevel analyses.

Background Quantifying the effect of measles containing vaccine (MCV) coverage and the prevalence of global acute malnutrition (GAM) on mortality levels in populations of displaced and crisis-affected resident children is important for intervention programming in humanitarian emergencies. Methods A total of 1597 surveys containing data on under-five death rate, population status (internally displaced, refugee, or crisis-affected resident), measles containing vaccine coverage, and global acute malnutrition were extracted from the Complex Emergency Database (CE-DAT). Under-five mortality rates were dichotomized to those exceeding critical levels or otherwise. A Bayesian multivariable mixed-effect logistic regression model was used to assess the association between an under-five death rate (U5DR) exceeding this threshold and population status (i.e., internally displaced, refugees or residents), GAM prevalence (proxy for food security), and MCV coverage. Results The prevalence of GAM, MCV and U5DR were higher in internally displaced children (IDC) with values of 14.6%, 69.9% and 2.07 deaths per 10 000 per day, respectively. Refugee populations had lower average under-five mortality rate (0.89 deaths per 10 000 per day), GAM of 12.0% and the highest measles containing vaccine coverage (80.0%). In crisis-affected residents the prevalence of GAM, MCV and average U5DR are 11.1%, 65.5% and 1.20 deaths per 10 000 per day respectively. In mixed-effect logistic model taking 2 deaths per 10 000 children less than five years old per as emergency threshold (Model III); MCV (AOR = 0.66, 95% Highest Density Interval (HDI): 0.57, 0.78), GAM (AOR = 1.79, 95% HDI: 1.52, 2.12) were associated with a reduction of the odds of U5DR exceeding critical level accounting for country-specific levels of variability. The odds of U5DR exceeding critical level (2/10000/day) in crisis-affected resident children and refugees were 0.36 (95% HDI: 0.22, 0.58) and 0.25(95% HDI: 0.11, 0.55) less than amongst IDP children adjusting for GAM and MCV. In considering country specific yearly median U5DR (model IV) the odds of U5DR exceeding twice the median U5DR were associated with MCV (AOR = 0.72, 95% HDI: 0.64, 0.82), GAM (AOR = 1.53, 95%HDI: 1.34, 1.76). The odds of U5DR exceeding critical level in crisis-affected resident children was 0.30(95% HDI: 0.20, 0.45) less than IDP children, after adjusting for MCV and GAM. We found no difference between the odds of U5DR exceeding twice the country level median U5DR in the refugee population compared to the IDPs. Conclusions In this study vaccination coverage and global acute malnutrition (proxy for food security) were associated with U5DR exceeding critical level. The emergency threshold for IDPs and affected residents is significantly different and consistent across the different outcomes, whereas the result is inconsistent for IDPs and refugees. Continued improvement in measles vaccination coverage and reduction of malnutrition in humanitarian emergencies have the potential to minimize the deterioration of mortality level amongst children in emergency settings. To generate a robust understanding of the critical level of child mortality in displaced and affected resident populations, studies accounting for the impact of the duration of displacement, contextual factors in humanitarian settings, and the level of humanitarian assistance provided are needed.

Background Humanitarian settings often present unique scientific challenges and conditions that distinguish them from standard research settings. While a number of these challenges are faced in both standard settings and humanitarian settings, factors unique to humanitarian settings such as inaccessibility and time sensitivities further exacerbate the effects of these challenges. This analysis focuses on experiences in post-disaster contexts such as Indonesia and India following the 2004 Indian Ocean Tsunami, the Philippines following Typhoon Haiyan in 2013, and Nepal following the 2015 earthquake. Discussion Particular issues that we faced in undertaking research in post-disaster settings include challenges with uncharted ethical and cultural considerations, non-standardised administrative methods for record keeping, data sharing and dissemination. While these issues are not unique to post-disaster humanitarian settings, the time-sensitive nature of our work exacerbated the effects of these concerns. Relying on local partners and making quick decisions to tackle issues is imperative for navigating both foreseen and unforeseen challenges. While pre-emptive action to address these concerns is the most efficient means to expedite research protocols, adaptability and contingency planning are key components of practical research implementation in dynamic situations. Conclusions Research is not always a priority in humanitarian settings, so innovative methods are necessary to conduct meaningful and situationally appropriate research in these venues. By understanding available resources, local culture, and political considerations and working efficiently and decisively, we can begin to jump hurdles associated with epidemiologic research in humanitarian settings.

Children face unique risks resulting from disasters and conflicts. Broadly, complex emergencies create new and augment existing health risks to children. Direct, conflict-related injuries and deaths–such as those resulting from exposure to chemical weapons and blast injuries–not only have immediate impact but also have long-term impacts on the health and wellbeing of children. Lapses in vaccination coverage, changes in vector patterns, and widespread malnutrition, contribute to new and re-emerging infectious diseases among children. Understanding risks resulting from disasters and conflicts is critical for implementing timely and appropriate public health programs to reduce the negative health effects on children.

Displaced populations face disproportionately high risk of communicable disease outbreaks given the strains of travel, health care circumstances in their country of origin, and limited access to health care in receiving countries. Understanding the role of demographic characteristics in outbreaks is important for timely and efficient control measures. Accordingly, this study assesses chickenpox outbreaks in three large refugee camps on mainland Greece from 2016 - 2017, using clinical line-list data from Médecins du Monde (MdM) clinics. Clinical line-list data from MdM clinics operating in Elliniko, Malakasa, and Raidestos camps in mainland Greece were used to characterize chickenpox outbreaks in these camps. Logistic regression was used to compare the odds of chickenpox by sex, camp, and yearly increase in age. Incidences were calculated for age categories and for sex for each camp outbreak. Across camps, the median age was 19 years (IQR: 7.00 - 30.00 years) for all individuals and five years (IQR: 2.00 - 8.00 years) for cases. Males were 55.94% of the total population and 51.32% of all cases. There were four outbreaks of chickenpox across Elliniko (n = 1), Malakasa (n = 2), and Raidestos (n = 1) camps. The odds of chickenpox when controlling for age and sex was lower for Malakasa (OR = 0.46; 95% CI, 0.38 - 0.78) and Raidestos (OR = 0.36; 95% CI, 0.24 - 0.56) when compared Elliniko. Odds of chickenpox were comparable between Malakasa and Raidestos (OR = 1.49; 95% CI, 0.92 - 2.42). Across all camps, the highest incidence was among children zero-to-five years of age. The sex-specific incidence chickenpox was higher for males than females in Elliniko and Malakasa, while the incidence was higher among females in Raidestos. As expected, individuals five years of age and under made up the majority of chickenpox cases. However, 12% of cases were teenagers or older, highlighting the need to consider atypical age groups in vaccination strategies and control measures. To support both host and displaced populations, it is important to consider risk-reduction needs for both groups. Including host communities in vaccination campaigns and activities can help reduce the population burden of disease for both communities.