Unintentional injuries in Mexico, 1990-2017: findings from the Global Burden of Disease Study 2017

Substance use and type of Road Traffic Injury in Mexico City

Limited data are available in Mexico on the prevalence of alcohol and drug use and the possible differences in their effects on types of road traffic injury (RTI), such as those involving pedestrians, drivers or passengers of motorcycles or other motor vehicles, and the association between substance use and driving behaviors, for preventive purposes. The sample comprised 433 adult RTI patients, admitted to the emergency department (ED) of a public hospital in Mexico City (January to April 2022). Breath Alcohol Concentration (BAC) was measured using a breath tester, and six types of drugs (amphetamines, barbiturates, benzodiazepines, cannabis, cocaine, and methamphetamine) were assessed using a saliva screen test. RTI patients also self-reported their alcohol and drug use in the six hours prior to the accident. Approximately 62% of respondents had been involved in a motorcycle crash. One in three patients self-reported or had traces of a substance in their saliva or breath. The most common substance was alcohol (23.6%), followed by cannabis and stimulants (10.9%). One in five patients reported having used a cell phone ten minutes before the injury. One in three had not been using any safety device, the only behavior exacerbated by substance use. We found a high prevalence of substance use in the sample of RTI patients admitted to the ED, regardless of the type of the RTI, together with high cell phone rates. Motorcycle passengers under the influence were particularly likely not to have been wearing a helmet.

The trends of interpersonal violence burden in Latin America, 1990 to 2019: secondary data analysis from the global burden of disease study

OBJECTIVES

We aimed to analyse the trends of interpersonal violence (IV) in Latin America (LA) between 1990 and 2019 for females and males at a national level.

STUDY DESIGN

Cross-sectional descriptive study.

METHODS

Following the 2019 Global Burden of Disease study we report IV mortality, premature mortality, years lived with disability and disability-adjusted life-years (DALYs) in LA by sex. To estimate the DALYs trends, we conducted a Joinpoint regression analysis.

RESULTS

Across all LA countries, IV burden was higher among males. Most of the IV burden was attributable to premature death, with a higher percentage in men than women. The burden of IV was most pronounced within the 15 to 39 age-groups in the majority of countries. Physical violence (PV) by firearm was the main cause of IV in LA, followed by PV by other means. Women in LA experienced at least twice as many sexual violence DALYs as men. IV in LA exhibited heterogeneous trends, with certain countries witnessing a significant decline in the IV DALYs rate, while others displayed a significant increase.

CONCLUSIONS

Our results show the great heterogeneity of IV burden present in the region as the trends varied from one country to another. Policing and criminal justice institutions in LA have failed to reduce crime and violence. Thus, tailored preventive measures and public policies that account for the specific context and geographical areas where this phenomenon is prevalent are urgently needed.

The burden of type 2 diabetes in adolescents and young adults in Mexico: analysis from the Global Burden of Disease Study, 1990 to 2019

PURPOSE

The aim was to analyze the findings from the 2019 Global Burden of Disease (GBD-2019) study on type-2 diabetes in Mexico's adolescents and young adults, at a national and subnational scale from 1990 to 2019, and to assess its association with the socio-demographic, and the healthcare access and quality indices.

METHODS

Following the GBD-2019 study, young-onset type 2 diabetes mortality, premature mortality, years lived with disability and disability-adjusted life-years (DALYs) are reported.

RESULTS

A significant increase in the overall number of deaths attributed to young-onset T2D was found. There was a non-significant decrease in mortality rates for both sexes across most age groups. DALYs in men were greater than that in women, with almost half attributed to premature death in males, while disability accounted for two thirds of DALYs in females. The DALY rate increased significantly in most states. Premature mortality decreased, while disability increased across all age-groups, and in all states for both sexes.

CONCLUSION

The surge in disability corresponded to the upsurge in obesity and overweight rates in Mexico among the younger population. This happened despite improvements in socio-economic status and healthcare access in Mexico which underscores the need for diabetes education in the public health sector.

Alcohol, drugs, and road traffic injuries in an emergency department in Mexico City

There have been no studies reporting on the use of biological specimens in Mexico to analyze the prevalence of alcohol and drug use among Emergency Department (ED) patients with a road traffic injury (RTI). We report here on a sample of 304 adult patients, admitted to the ED of a public hospital in Mexico City from January to April 2022, after being involved in an RTI. Patients gave informed consent for a breath test measuring breath alcohol concentration (BAC) and a saliva screening test for six classes of drugs (amphetamines, barbiturates, benzodiazepines, cannabis, cocaine, and methamphetamine). We found that at least one in every four patients (27.6%) had traces of alcohol or drugs in their body upon arrival in the ED. The breath test found a positive BAC in 16.1% of the sample; the most common substances detected in saliva were amphetamines or methamphetamine (8.6%), followed by cocaine (7.0%) and cannabis (6.9%). Only a few variables differentiated those with positive BAC from those with negative BAC (male, arriving on a weekend day or night, and arriving by ambulance), and even fewer variables differentiated those testing positives for drugs than those testing negative (less than 13 years of education and drivers of cars, bicycles, or other vehicles). While alcohol continues to be the single most used substance, our findings indicate that stimulants are of great concern. Since those testing positives for alcohol or drugs are so similar in their demographic pattern to those testing negative, the introduction of biological testing as a routine practice in the ED is highly recommended. Routine testing makes it possible to provide the patient with the best treatment and is also the best way to assess substance use.

Global trends and regional differences in non-transport unintentional injuries mortality among children and adolescents, 1990 to 2019: results from the Global Burden of Disease 2019 study

BACKGROUND

Non-transport unintentional injuries (NTUIs) are major public concerns, especially among children and adolescents in low- and middle-income countries. With environmental and cognitive changes, a recent systematic description of global trends and regional differences concerning NTUIs is urgently needed for the global agenda of relevant policy-making and intervention target findings.

METHODS

We used mortality, population, and socio-demographic-index (SDI) data from Global Burden of Disease 2019 to analyze the trends of NTUIs mortality. We applied the slope index of inequality (SII) and relative index of inequality (RII) to measure the absolute and relative inequality between countries and territories. The concentration curve and concentration index (CI) were also used to measure the inequality. We conducted a sensitivity analysis to make our findings credible.

RESULTS

In 2019, there were 205,000 deaths due to NTUIs among children and adolescents aged 5 to 24 years, which decreased from 375,000 in 1990. In 2019, the age-standardized mortality rate (ASMR) was 8.13 per 100,000, ranging from the lowest in the Netherlands (0.90 per 100,000) to the highest in the Solomon Islands (29.34 per 100,000). The low-middle SDI group had the highest ASMR of NTUIs, while the low SDI group had the slowest decrease. After excluding the death caused by "exposure to forces of nature" and "other unintentional injuries", drowning accounted for the most deaths in almost every SDI group, gender, and age group, but the major causes of death varied in different subgroups. For example, animal contact was a major cause in low and low-middle SDI groups but less in high SDI groups, while high and high-middle SDI groups had a higher proportion of deaths for foreign body and poisonings. The SII showed a declining trend, but the RII and CI did not, which might indicate that inequality was persistent. Similar results were found in the sensitivity analysis.

CONCLUSIONS

Despite the declining trend of the mortality rate and the narrowing gap between countries, there were still a large number of children and adolescents dying from NTUIs, and those experiencing social-economic disadvantages remained at high mortality. Embedding the prevention of NTUIs into sustainable development goals might contribute to the progress of reducing death and inequalities, which ensures that no one is left behind.

The political and social contexts of global road safety: challenges for the next decade

The goal of this Series paper is to show how road safety has evolved as a global public health issue over the past two decades and to discuss the political and economic dynamics that led to this change. Specifically, the key stakeholders, influences, networks, issue framing, actor power, and synergistic interactions that have contributed to how road safety has evolved as a global public health issue will be discussed. In doing so, we capture the important chronology of events and discuss a set of challenges that highlight the complexity of road safety. We posit that the global road safety community needs to re-evaluate its role and strategy for the next decade and focus more on implementation and country action to achieve reductions in road traffic injuries. We call for an open and inclusive process to ensure that such a reflection occurs before the end of the current decade.

Factors associated with the severity of road traffic injuries from emergency department based surveillance system in two Mexican cities

Background

Limited data from low- and middle-income countries (LMICs) on the severity of road traffic injuries (RTIs) and their relation to different variables of interest are routinely obtained. Knowledge on this subject relies on evidence from high-income countries, which might not be the same as in LMICs. This information is greatly needed to advance and inform local and regional efforts towards the United Nations’ Decade of Action and the Sustainable Development Goals.

Methods

From May 2012 to November 2014, a RTI surveillance system was implemented in two referral hospitals in two Mexican cities, León and Guadalajara, with the objective of exploring the relationship between Injury Severity Score (ISS) and different sociodemographic characteristics of the injured as well as different variables related to the event and the environment. All individuals suffering RTIs who visited the Emergency Rooms (ER) were included after granting informed consent. A Zero-Truncated Negative Binomial Model was employed to explore the statistical association between ISS and variables of interest.

Results

3024 individuals participated in the study: 2185 (72.3%) patients from León and 839 patients (27.7%) from Guadalajara. Being male, in the 20–59 age-group, having less schooling, events occurring in Guadalajara, on Sundays, at night, and arriving at ER via public/private ambulance were all associated with an increased log count of ISS. Found a significant interaction effect (p-value< 0.05) between type of road user and alcohol intake six hours before the accident on severity of the injury (ISS). The use of illicit drugs, cellphones and safety devices during the event showed no association to ISS.

Conclusions

Our study contributes to the statistical analysis of ISS obtained through RTI hospital surveillance systems. Findings might facilitate the development and evaluation of focused interventions to reduce RTIs in vulnerable users, to enhance ER services and prehospital care, and to reduce drink driving.

Global estimates of the attributable risk of alcohol consumption on road injuries

BACKGROUND

Alcohol consumption is one of the main risk factors for death by road injuries, but little is known about the global distribution of the population-attributable risk (PAR) of alcohol use for death by road injuries.

METHODS

We used publicly available data from the 2019 Global Burden of Disease Study (GBD) to estimate the PAR of alcohol use for 5 types of road injury, globally and individually for available countries, by socio-demographic index (SDI), and by age, sex, and year from 1990 to 2019.

RESULTS

6.6% of all road injuries in 2019 were attributable to alcohol consumption, with large variations worldwide; the highest burden was in Europe and among countries classified in the high-middle SDI. PAR was higher in men than in women, and among younger individuals. Important variations in PAR of alcohol were also observed by road injury type, with motorcyclist road injuries having the highest PAR. Overall, PAR showed a small increase during 1990-2019; younger (<39 years old) men showed an increasing trend during this period, while older women had a decreasing trend in PAR.

CONCLUSIONS

PAR for alcohol and road injuries is not homogenous. Large PAR for alcohol and road deaths was found in Europe, among men, young adults, and motorcyclists. These results could help public health agencies, law enforcement, and the public guide efforts to reduce these deaths.

Road injury burden in Mexico 1990 to 2019: Secondary data analysis from the Global Burden of Disease Study

Road injuries have been a major cause of premature mortality and disability in Mexico. The objective of this paper is to report the findings from the Global Burden of Disease study (GBD-2019) on road injuries in Mexico at a national and subnational scale from 1990 to 2019, and to assess the association between road injury burden and the socio-demographic index. Following the 2019 Global Burden of Disease study road injury mortality, premature mortality, the years lived with disability and disability-adjusted life-years (DALYs) are reported. While the number of deaths from road injuries increased between 1990 and 2019, the age-standardized mortality rates declined. Pedestrian road injuries and motor vehicle road injuries accounted for 8 of every 10 deaths from road injury in 2019. Road injury mortality and DALY rates decreased nationally, but stagnated since 2011. The road injury burden was higher for men in all age groups. Pedestrian and motor vehicle road injuries caused the highest DALY rate in both males and females. There was no significant association between the SDI and the road injury age-standardized DALY rates. This study presents a comprehensive report of road injury burden of disease in Mexico. Mexico continues to have an incomplete, fragmented and poorly enforced legislative framework, with a large diversity between its 32 states. Thus, an integrated legislative and juridical effort is needed to continue reducing the road injury disease burden, which is tailored for specific age groups, vulnerable road users and high-burden areas.

Speeding in the city of Xalapa, Mexico: Prevalence and associated factors

OBJECTIVE

To estimate the prevalence of speeding in the city of Xalapa, Veracruz, in Mexico and to identify factors potentially associated to this risk behavior.

METHODS

A cross-sectional study was conducted on December 2019 in Xalapa, Veracruz. Speed measurement was conducted in a random sample of 10% of all the main roads in the urban area (n = 12). Observations were conducted over the course of one week at different times spending no more than 1.5 h in each site at a time. All vehicles circulating in each observation site during the data collection were included in the sample. Characteristics of drivers, vehicles and the environment were also collected and analyzed, using logistic regression analysis and a multiple ordinal regression model to identify factors associated to speeding and more serious violations of speed limits.

RESULTS

Average speed of the 3,390 vehicles observed was 50.97 km/h. Prevalence of speeding was 65.66% (95%-CI: 64.04-67.26%); 26.96% (95%-CI: 25.47-28.49) exceeded the speed limit by 50%. Speeding and more serious violations of speed limits were more frequent in light vehicles, residential zones and during weekends. More serious violations of speed limits were also more frequent on smaller roads, where speed limit were lower and during morning hours.

CONCLUSIONS

The great majority of vehicles transgress speed limits in Xalapa, Veracruz. Our results support the urgent need to implement speed control measures in the city. Changes in road infrastructure design, as well as promoting a comprehensive speeding legislation (with adequate speed limits and correctly enforced) aimed at reducing exposure to this key risk factor are recommended. As evaluation of road safety interventions is key, our data could be used as a baseline to evaluate the effects and impact of future interventions implemented in this Mexican city.

Global prevalence of traumatic non-fatal limb amputation

BACKGROUND

Reliable information on both global need for prosthetic services and the current prosthetist workforce is limited. Global burden of disease estimates can provide valuable insight into amputation prevalence due to traumatic causes and global prosthetists needed to treat traumatic amputations.

OBJECTIVES

This study was conducted to quantify and interpret patterns in global distribution and prevalence of traumatic limb amputation by cause, region, and age within the context of prosthetic rehabilitation, prosthetist need, and prosthetist education.

STUDY DESIGN

A secondary database descriptive study.

METHODS

Amputation prevalence and prevalence rate per 100,000 due to trauma were estimated using the 2017 global burden of disease results. Global burden of disease estimation utilizes a Bayesian metaregression and best available data to estimate the prevalence of diseases and injuries, such as amputation.

RESULTS

In 2017, 57.7 million people were living with limb amputation due to traumatic causes worldwide. Leading traumatic causes of limb amputation were falls (36.2%), road injuries (15.7%), other transportation injuries (11.2%), and mechanical forces (10.4%). The highest number of prevalent traumatic amputations was in East Asia and South Asia followed by Western Europe, North Africa, and the Middle East, high-income North America and Eastern Europe. Based on these prevalence estimates, approximately 75,850 prosthetists are needed globally to treat people with traumatic amputations.

CONCLUSION

Amputation prevalence estimates and patterns can inform prosthetic service provision, education and planning.

The burden of injuries in Mexico: Secondary data analysis from the Global Burden of Disease Study, 1990 to 2019

IMPORTANCE

Injuries have been a major cause of premature mortality and short-term and long-term disability in Mexico.

OBJECTIVE

To report the findings from the Global Burden of Disease 2019 study on injuries in Mexico at a national and subnational scale from 1990 to 2019.

METHODS

Following the 2019 Global Burden of Disease study we examined injury mortality, premature mortality, years lived with disability and disability-adjusted life-years according to 14 subcategories. We calculated the Pearson correlation coefficient between the injury burden and the socio-demographic index.

RESULTS

While the number of deaths from injuries increased significantly, the changes in the age-standardized mortality rates trended towards declines. Interpersonal violence, road injuries, falls and self-harm accounted for 8 of every 10 deaths from injury in 2019. Injury mortality and the disability-adjusted life-years rates decreased nationally and in most states in the period as a whole, but have increased since 2007. The injury burden was higher for men in all age groups. Interpersonal violence caused the highest disability-adjusted life-years rate in males and road injuries in females. The socio-demographic index increased in all states, while the injury age-standardized disability-adjusted life-years rates between 1990 and 2019 decreased, but there was no statistical association between both indicators.

DISCUSSION AND CONCLUSIONS

This study represents a comprehensive review of injury burden of disease in Mexico. The injury burden decreased, but improved heterogeneously among states. To further reduce the injury burden of disease, it's necessary for federal, state and local governments to prioritize safety promotion and injury prevention programs, infrastructure improvements, legislation, and enforcement at a national and subnational level. Mexico's injury prevention efforts should also be tailored for specific age groups, such as males aged 20-49 years or females in the younger and older age groups, and high-burden areas.