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The experience of losing a child is increasingly uncommon worldwide but is no less devastating for parents who experience it. An overlooked aspect of this phenomenon is its timing: at which age do bereft parents lose a child and how are these ages at loss distributed? We use demographic methods to explore the mean and variability of maternal age at child loss in 18 countries for the 1850-2000 birth cohorts. We find that the distribution of age of child loss is bimodal, with one component representing young offspring deaths and another representing adult offspring deaths. Offspring loss is transitioning from being a relatively common life event, mostly experienced by young mothers, to a rare one spread throughout the maternal life course. Moreover, there is no evidence of convergence in the variability of age at offspring loss. These results advance the formal demography of kinship and underline the need to support bereaved parents across the life course.
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Armed conflicts escalate combatant and civilian mortality and produce considerable levels of family bereavement. Yet, we know little about the prevalence of bereavement in conflict-affected populations. The violent loss of kin affects individuals across several dimensions, including trauma, mental health, socioeconomic status, and caregiving, especially during childhood and old age. Here, we propose a method to quantify population-level loss of parents and offspring in conflict-affected populations. Our analyses demonstrate that bereavement levels consistently surpass fatality rates in 16 conflict-affected settings. Using demographic projections, we show that these populations will continue to experience considerable levels of bereavement in the coming decades, independent of the future development of the respective conflicts. This quantification underscores bereavement as a profound yet understudied consequence of conflict with potentially far-reaching implications lingering long after the conflict's end.
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Conflitos Armados , Luto , Humanos , Conflitos Armados/psicologia , Família/psicologia , Masculino , FemininoRESUMO
PREMISE: Bracken (Pteridium, Dennstaedtiaceae) is a cosmopolitan genus of aggressive disturbance colonizers that are toxic to agricultural livestock. The taxonomy of Pteridium has been treated in multiple schemes, ranging from one to six species worldwide, with numerous subspecies and varieties. Recent work has focused on the worldwide distribution and systematics of the bracken fern, but South America has been poorly represented. We present the first continent-wide sampling and analysis of Pteridium esculentum, a Southern Hemisphere diploid species. METHODS: Within South America, P. esculentum has several morphotypes, distinguished into subspecies by variation in indument and lamina architecture. We used double digest restriction site-associated DNA sequencing (ddRADSeq) to assess the phylogenetic relationships of P. esculentum subspecies. RESULTS: We found a striking genetic homogeneity in the species, being able to support only two morphotypes from molecular data: P. e. arachnoideum and P. e. campestre. We had high confidence for shallow and deep phylogenetic relationships, but less support for relationships among crown groups. CONCLUSIONS: We describe an east-west geographic pattern that would explain the relationships between populations; and, in contrast to previous studies, we detected differences with P. esculentum from Australia. These results will lay the foundations for studying variations in this species' behavior as a weed, as well as its impact on the production of agricultural livestock in South America.
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Filogenia , Pteridium , América do Sul , Pteridium/genética , Variação Genética , Análise de Sequência de DNARESUMO
In their seminal experiment in 1944, Heider and Simmel revealed that humans have a pronounced tendency to impose narrative meaning even in the presence of simple animations of geometric shapes. Despite the shapes having no discernible features or emotions, participants attributed strong social context, meaningful interactions, and even emotions to them. This experiment, run on traditional 2D displays has since had a significant impact on fields ranging from psychology to narrative storytelling. Virtual Reality (VR), on the other hand, offers a significantly new viewing paradigm, a fundamentally different type of experience with the potential to enhance presence, engagement and immersion. In this work, we explore and analyze to what extent the findings of the original experiment by Heider and Simmel carry over into a VR setting. We replicate such experiment in both traditional 2D displays and with a head mounted display (HMD) in VR, and use both subjective (questionnaire-based) and objective (eye-tracking) metrics to record the observers' visual behavior. We perform a thorough analysis of this data, and propose novel metrics for assessing the observers' visual behavior. Our questionnaire-based results suggest that participants who viewed the animation through a VR headset developed stronger emotional connections with the geometric shapes than those who viewed it on a traditional 2D screen. Additionally, the analysis of our eye-tracking data indicates that participants who watched the animation in VR exhibited fewer shifts in gaze, suggesting greater engagement with the action. However, we did not find evidence of differences in how subjects perceived the roles of the shapes, with both groups interpreting the animation's plot at the same level of accuracy. Our findings may have important implications for future psychological research using VR, especially regarding our understanding of social cognition and emotions.
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Emoções , Realidade Virtual , Humanos , Masculino , Feminino , Adulto , Emoções/fisiologia , Adulto Jovem , Inquéritos e Questionários , Percepção SocialRESUMO
Asteraceae is the world's richest plant family and is found on all continents, in environments ranging from the coast to the highest mountains. The family shows all growth forms and, as in other angiosperm families, species richness is concentrated in tropical regions. South America has the highest diversity of Asteraceae in the world, yet taxonomic and distributional knowledge gaps remain. This study compiles an updated catalog of Asteraceae native to South America, based on national and regional checklists and ongoing large-scale flora projects. The resulting checklist includes a total of 6,940 species and 564 genera native to South America to date, which represent about a quarter of the family's global diversity. Countries already considered to be megadiverse show the greatest diversity, such as Brazil with 2,095 species, followed by Peru (1,588), Argentina (1,377), and Colombia (1,244), with this diversity mainly focused on the Brazilian Highlands and the Andes. Species endemism also peaks in Brazil, but Sørensen distances reveal the Chilean flora to be eminently different from the rest of the continent. Tribes better represented in the continent are Eupatorieae, Senecioneae and Astereae, also with a remarkably presence of entirely South American subfamilies representing earliest diverging lineages of the Asteraceae, such as Barnadesioideae, Wunderlichioideae, Famatinanthoideae, and Stifftioideae. It is estimated that the discovery and description curves have not yet stabilized, and the number of species is likely to increase by 5 to 10% in the coming years, posing major challenges to continental-scale conservation.
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Importance: Youth (those aged <18 years) parental death has been associated with negative health outcomes. Understanding the burden of parental death due to drug poisoning (herein, drugs) and firearms is essential for informing interventions. Objective: To estimate the incidence of youth parental death due to drugs, firearms, and all other causes. Design, Setting, and Participants: This cross-sectional observational study was conducted using vital registration, including all US decedents, and census data from January 1990 through December 2020. Data were analyzed from May 30, 2023, to March 28, 2024. Exposures: Parental death due to drug poisoning or firearms. Main Outcomes and Measures: A demographic matrix projection model was used to estimate the number and incidence of youth experiencing parental death, defined as the death of 1 or more parents, per 1000 population aged less than 18 years. Analyses evaluated parental deaths by drugs, firearms, and all other causes from 1999 through 2020 by race and ethnicity. Results: Between 1999 and 2020, there were 931â¯785 drug poisoning deaths and 736â¯779 firearm-related deaths with a mean (SD) age of 42.6 (16.3) years. Most deaths occurred among males (73.8%) and White decedents (70.8%) followed by Black (17.5%) and Hispanic (9.5%) decedents. An estimated 759â¯000 (95% CI, 722â¯000-800â¯000) youth experienced parental death due to drugs and an estimated 434â¯000 (95% CI, 409â¯000-460â¯000) youth experienced parental death due to firearms, accounting for 17% of all parental deaths. From 1999 to 2020, the estimated number of youth who experienced parental death increased 345% (95% CI, 334%-361%) due to drugs and 39% (95% CI, 37%-41%) due to firearms compared with 24% (95% CI, 23%-25%) due to all other causes. Black youth experienced a disproportionate burden of parental deaths, based primarily on firearm deaths among fathers. In 2020, drugs and firearms accounted for 23% of all parental deaths, double the proportion in 1999 (12%). Conclusions and Relevance: Results of this modeling study suggest that US youth are at high and increasing risk of experiencing parental death by drugs or firearms. Efforts to stem this problem should prioritize averting drug overdoses and firearm violence, especially among structurally marginalized groups.
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Overdose de Drogas , Armas de Fogo , Violência com Arma de Fogo , Morte Parental , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Causas de Morte , Estudos Transversais , Overdose de Drogas/mortalidade , Overdose de Drogas/epidemiologia , Armas de Fogo/estatística & dados numéricos , Violência com Arma de Fogo/estatística & dados numéricos , Incidência , Morte Parental/estatística & dados numéricos , Morte Parental/tendências , Estados Unidos/epidemiologia , Ferimentos por Arma de Fogo/mortalidade , Ferimentos por Arma de Fogo/epidemiologia , Recém-Nascido , Negro ou Afro-Americano/estatística & dados numéricos , Pai/estatística & dados numéricos , Brancos/estatística & dados numéricos , Hispânico ou Latino/estatística & dados numéricosRESUMO
The non-line-of-sight (NLOS) imaging field encompasses both experimental and computational frameworks that focus on imaging elements that are out of the direct line-of-sight, for example, imaging elements that are around a corner. Current NLOS imaging methods offer a compromise between accuracy and reconstruction time as experimental setups have become more reliable, faster, and more accurate. However, all these imaging methods implement different assumptions and light transport models that are only valid under particular circumstances. This paper lays down the foundation for a cohesive theoretical framework which provides insights about the limitations and virtues of existing approaches in a rigorous mathematical manner. In particular, we adopt Dirac notation and concepts borrowed from quantum mechanics to define a set of simple equations that enable: i) the derivation of other NLOS imaging methods from such single equation (we provide examples of the three most used frameworks in NLOS imaging: back-propagation, phasor fields, and f-k migration); ii) the demonstration that the Rayleigh-Sommerfeld diffraction operator is the propagation operator for wave-based imaging methods; and iii) the demonstration that back-propagation and wave-based imaging formulations are equivalent since, as we show, propagation operators are unitary. We expect that our proposed framework will deepen our understanding of the NLOS field and expand its utility in practical cases by providing a cohesive intuition on how to image complex NLOS scenes independently of the underlying reconstruction method.
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Humans perceive the world by integrating multimodal sensory feedback, including visual and auditory stimuli, which holds true in virtual reality (VR) environments. Proper synchronization of these stimuli is crucial for perceiving a coherent and immersive VR experience. In this work, we focus on the interplay between audio and vision during localization tasks involving natural head-body rotations. We explore the impact of audio-visual offsets and rotation velocities on users' directional localization acuity for various viewing modes. Using psychometric functions, we model perceptual disparities between visual and auditory cues and determine offset detection thresholds. Our findings reveal that target localization accuracy is affected by perceptual audio-visual disparities during head-body rotations, but remains consistent in the absence of stimuli-head relative motion. We then showcase the effectiveness of our approach in predicting and enhancing users' localization accuracy within realistic VR gaming applications. To provide additional support for our findings, we implement a natural VR game wherein we apply a compensatory audio-visual offset derived from our measured psychometric functions. As a result, we demonstrate a substantial improvement of up to 40% in participants' target localization accuracy. We additionally provide guidelines for content creation to ensure coherent and seamless VR experiences.
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Percepção Espacial , Realidade Virtual , Humanos , Masculino , Adulto , Feminino , Percepção Espacial/fisiologia , Adulto Jovem , Gráficos por Computador , Percepção Auditiva/fisiologia , Rotação , Percepção Visual/fisiologia , Movimentos da Cabeça/fisiologia , Interface Usuário-ComputadorRESUMO
Although color vision deficiencies are very prevalent, there are no ideal methods for assessing color vision in all environments. We compared a new digital and automated method that quantifies color perception for the three protan, deutan, and tritan axes with two of the most commonly used color tests in daily practice: the Ishihara 38 plates test and the Farnsworth-Munsell 100-Hue test. One hundred patients underwent a triple examination composed of the new DIVE Color Test, the Ishihara test, and the Farnsworth-Munsell 100-Hue test. The DIVE Color Test was performed twice in forty participants to assess its repeatability. In the trichromatic group, the mean age stood at 20.57 ± 9.22 years compared with 25.99 ± 15.86 years in the dyschromatic group. The DIVE and Ishihara tests exhibited excellent agreement in identifying participants with color deficiency (Cohen's kappa = 1.00), while it was 0.81 when comparing DIVE and Farnsworth. The correlation between the global perception values of Farnsworth (TES) and DIVE (GCS) was 0.80. The repeatability of the DIVE Color Test was high according to Bland-Altman analysis with an intraclass correlation coefficient of 0.83. According to Ishihara, the DIVE Color Test proved to be an effective and reproducible tool for red-green color vision deficiency detection, capable of determining the severity of the defect in each of the three axes faster and more accurately than both Ishihara and Farnsworth.
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Moebius syndrome (MBS) is a congenital cranial dysinnervation disorder (CCDD) characterized by a bilateral palsy of abducens and facial cranial nerves, which may coexist with other cranial nerves palsies, mostly those found in the dorsal pons and medulla oblongata. MBS is considered a "rare" disease, occurring in only 1:50,000 to 1:500,000 live births, with no gender predominance. Three independent theories have been described to define its etiology: the vascular theory, which talks about a transient blood flow disruption; the genetic theory, which takes place due to mutations related to the facial motor nucleus neurodevelopment; and last, the teratogenic theory, associated with the consumption of agents such as misoprostol during the first trimester of pregnancy. Since the literature has suggested the existence of these theories independently, this review proposes establishing a theory by matching the MBS molecular bases. This review aims to associate the three etiopathogenic theories at a molecular level, thus submitting a combined postulation. MBS is most likely an underdiagnosed disease due to its low prevalence and challenging diagnosis. Researching other elements that may play a key role in the pathogenesis is essential. It is common to assume the difficulty that patients with MBS have in leading an everyday social life. Research by means of PubMed and Google Scholar databases was carried out, same in which 94 articles were collected by using keywords with the likes of "Moebius syndrome," "PLXND1 mutations," "REV3L mutations," "vascular disruption AND teratogens," and "congenital facial nerve palsy." No exclusion criteria were applied.
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Paralisia Facial , Síndrome de Möbius , Humanos , Síndrome de Möbius/genética , Síndrome de Möbius/diagnóstico , Teratogênicos/toxicidade , Nervo Facial , Mutação , DNA Polimerase Dirigida por DNA/genética , Proteínas de Ligação a DNA/genéticaRESUMO
AIM: To quantify the impact of prematurity on chromatic discrimination throughout childhood, from 2 to 15 years of age. METHODS: We recruited two cohorts of children, as part of the TrackAI Project, an international project with seven different study sites: a control group of full-term children with normal visual development and a group of children born prematurely. All children underwent a complete ophthalmological exam and an assessment of colour discrimination along the three colour axes: deutan, protan and trytan using a DIVE device with eye tracking technology. RESULTS: We enrolled a total of 1872 children (928 females and 944 males) with a mean age of 6.64 years. Out of them, 374 were children born prematurely and 1498 were full-term controls. Using data from all the children born at term, reference normative curves were plotted for colour discrimination in every colour axis. Pre-term children presented worse colour discrimination than full-term in the three colour axes (p < 0.001). Even after removing from the comparison, all pre-term children with any visual disorder colour discrimination outcomes remained significantly worse than those from full-term children. CONCLUSION: While colour perception develops throughout the first years of life, children born pre-term face an increased risk for colour vision deficiencies.
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Percepção de Cores , Defeitos da Visão Cromática , Masculino , Recém-Nascido , Feminino , Gravidez , Humanos , Criança , Defeitos da Visão Cromática/etiologia , Recém-Nascido Prematuro , Parto , Percepção VisualRESUMO
Demographers have long attempted to project future changes in the size and composition of populations, but have ignored what these processes will mean for the size, composition, and age distribution of family networks. Kinship structures matter because family solidarity-a crucial source of informal care for millions of people around the world-is conditional on kin being alive. Here, we present innovative projections of biological kin for the 1950 to 2100 period and discuss what they imply for the availability of informal care. Overall, we project that the number of living kin for individuals will decline dramatically worldwide. While a 65-yo woman in 1950 could expect to have 41 living kin, a 65-yo woman in 2095 is projected to have just 25 [18.8 to 34.7] relatives (lower and upper 80% projection intervals). This represents a 38% [15 to 54] global decline. The composition of family networks is also expected to change, with the numbers of living grandparents and great-grandparents markedly increasing, and the numbers of cousins, nieces and nephews, and grandchildren declining. Family networks will age considerably, as we project a widening age gap between individuals and their kin due to lower and later fertility and longer lifespans. In Italy, for example, the average age of a grandmother of a 35-yo woman is expected to increase from 77.9 y in 1950 to 87.7 y [87.1 to 88.5] in 2095. The projected changes in kin supply will put pressure on the already stretched institutional systems of social support, as more individuals age with smaller and older family networks.
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Família , Avós , Feminino , Humanos , Apoio Social , Longevidade , FertilidadeRESUMO
Understanding human visual behavior within virtual reality environments is crucial to fully leverage their potential. While previous research has provided rich visual data from human observers, existing gaze datasets often suffer from the absence of multimodal stimuli. Moreover, no dataset has yet gathered eye gaze trajectories (i.e., scanpaths) for dynamic content with directional ambisonic sound, which is a critical aspect of sound perception by humans. To address this gap, we introduce D-SAV360, a dataset of 4,609 head and eye scanpaths for 360° videos with first-order ambisonics. This dataset enables a more comprehensive study of multimodal interaction on visual behavior in virtual reality environments. We analyze our collected scanpaths from a total of 87 participants viewing 85 different videos and show that various factors such as viewing mode, content type, and gender significantly impact eye movement statistics. We demonstrate the potential of D-SAV360 as a benchmarking resource for state-of-the-art attention prediction models and discuss its possible applications in further research. By providing a comprehensive dataset of eye movement data for dynamic, multimodal virtual environments, our work can facilitate future investigations of visual behavior and attention in virtual reality.
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Gráficos por Computador , Realidade Virtual , Humanos , Fixação Ocular , Movimentos Oculares , AtençãoRESUMO
Visual behavior depends on both bottom-up mechanisms, where gaze is driven by the visual conspicuity of the stimuli, and top-down mechanisms, guiding attention towards relevant areas based on the task or goal of the viewer. While this is well-known, visual attention models often focus on bottom-up mechanisms. Existing works have analyzed the effect of high-level cognitive tasks like memory or visual search on visual behavior; however, they have often done so with different stimuli, methodology, metrics and participants, which makes drawing conclusions and comparisons between tasks particularly difficult. In this work we present a systematic study of how different cognitive tasks affect visual behavior in a novel within-subjects design scheme. Participants performed free exploration, memory and visual search tasks in three different scenes while their eye and head movements were being recorded. We found significant, consistent differences between tasks in the distributions of fixations, saccades and head movements. Our findings can provide insights for practitioners and content creators designing task-oriented immersive applications.
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Gráficos por Computador , Movimentos Oculares , Humanos , Movimentos Sacádicos , Movimentos da Cabeça , Fixação Ocular , Percepção VisualRESUMO
La cocaína proviene de la hoja de coca, es una sustancia que cuando se consume por la vía inhalatoria puede producir lesiones graves a nivel nasal, con lesiones que se inician a nivel de la mucosa, perforación septal, con pérdida del soporte a nivel de la punta nasal, retracción alar, compromiso de y retracción de ambas alas, planos de cobertura y piso de fosas nasales. La reconstrucción es un desafío para el cirujano plástico. Abarcando un arsenal terapéutico que va desde solo confeccionar un marco cartilaginoso para soporte de la columela y dorso nasal con costilla, hasta cobertura interna y externa con colgajos más sofisticados. Creemos que estos pacientes para su tratamiento deben presentar conocimiento de que es un camino largo que requiere muchos tiempos quirúrgicos y que en estadios avanzados la cobertura de mucosa es el mayor desafío.
Cocaine comes from the coca leaf, it is a substance that when consumed by inhalation can cause serious injuries to the nose. With lesions that start at the level of the mucosa, septal perforation, with loss of support at the level of the nasal tip, alar retraction, compromise and retraction of both wings, coverage planes, and floor of the nostrils. Reconstruction is a challenge for the plastic surgeon. A therapeutic arsenal that goes from just making a cartilaginous framework to support the columella and nasal dorsum with rib, to internal and external coverage with more sophisticated flaps. We believe that in order to treat these patients, they must be aware that it is a long road that requires many surgical times and that in advanced stages mucosal coverage is the greatest challenge
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Humanos , Feminino , Adulto , Rinoplastia/reabilitação , Nariz/efeitos dos fármacos , Transtornos Relacionados ao Uso de Cocaína/patologiaRESUMO
Introducción. Las lesiones tipo degloving o avulsiones extensas de partes blandas representan un desafío para el equipo médico tratante. Es fundamental el adecuado manejo de estos pacientes dada la alta morbilidad. Objetivos. Estudio de las lesiones tipo degloving de partes blandas tratados en el Centro Nacional de Quemados, su manejo y tratamiento en los últimos 18 años. Analizar la situación actual de estas heridas a fin de proporcionar herramientas para el desarrollo de estrategias de prevención y tratamiento. Materiales y métodos. Estudio retrospectivo período enero 2004 - enero 2022, análisis de base de datos del Centro Nacional de Quemados del Hospital de Clínicas, Montevideo, Uruguay, incluyendo todos los ingresos por degloving extensos de partes blandas Resultados. La población estuvo compuesta por 38 pacientes, en su mayoría con lesiones por siniestro de tránsito (92,1%) en rol peatón (57,9%). Se encontró una tasa de complicaciones de 55,3% y una mortalidad de 15,8%. Se vio asociación entre complicaciones infecciosas y mortalidad y entre cultivo positivo al ingreso y demora en el ingreso al centro de quemados. Conclusiones. Las lesiones graves de miembros inferiores se han presentado con elevada tasa de mortalidad y de complicaciones infecciosas. Estas complicaciones se asociaron con un mayor tiempo de internación. Las complicaciones infecciosas a su vez se asociaron con la mortalidad, igual que la extensión lesional.
Introduction. Degloving injuries or extensive soft tissue avulsions represent a challenge for the medical team. Proper management of these patients is essential given the high morbidity. Objectives. To study of soft tissue degloving injuries treated at the National Burn Center, their management and treatment in the last 18 years. To analyze the current situation of these injuries in order to provide tools for development of prevention and treatment strategies. Materials and methods. Retrospective study from January 2004 to January 2022, database analysis of the National Burn Center of "Hospital de Clínicas" (Montevideo-Uruguay), including all admissions for extensive soft tissue degloving. Results. The population consisted of 38 patients, mostly with injuries due to traffic accidents (92.1%) of which 57.9% were pedestrians. A complication rate of 55.3% and a mortality of 15.8% were found. An association arised between infectious complications and mortality and between a positive culture on admission and a delay in time to enter to the National Burn Center. Conclusions. Lower limbs severe injuries have presented a high rate of mortality and infectious complications. These complications were associated with a longer hospital stay. Infectious complications, in turn, were associated with mortality, as well as the extent of lesions.
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Humanos , Masculino , Feminino , Acidentes de Trânsito/mortalidade , Avulsões Cutâneas/complicações , Avulsões Cutâneas/mortalidade , Infecções/complicaçõesRESUMO
Introducción. El cáncer gástrico es la cuarta causa de muerte por cáncer a nivel mundial, con más de un millón de casos diagnosticados cada año. La cirugía con intención curativa sigue siendo el pilar del manejo para los pacientes resecables. La identificación de pacientes con mayor riesgo de morbimortalidad es importante para el proceso de toma de decisiones, sin existir hasta el momento una herramienta ideal. La revisión y el análisis de la experiencia de un centro oncológico de referencia pueden generar información útil. Métodos. Estudio observacional de cohorte histórica, en el que se incluyeron los pacientes llevados a gastrectomía por adenocarcinoma gástrico en el Instituto Nacional de Cancerología, Bogotá, D.C., Colombia, entre el 1° de enero del 2010 y el 31 de diciembre del 2017. Resultados. Se evaluaron 332 pacientes, de los cuales el 57,2 % eran hombres con edad promedio de 61 años. La mortalidad en esta serie fue del 4,5 % y la morbilidad de 34,9 %. El factor asociado con mayor riesgo de muerte fue la edad, con un HR de 1,05 (p=0,021). Se encontró un mayor riesgo en el grupo de pacientes con ASA mayor a II (p=0,009).El 17,4 % presentaron complicaciones mayores a IIIA de la clasificación de Clavien-Dindo. Conclusiones. En el presente trabajo las cifras de morbilidad y mortalidad son similares a las reportadas en la literatura. Solo la edad y la clasificación de ASA mostraron asociación con valor estadístico significativo para complicaciones postoperatorias
Introduction. Gastric cancer is the fourth leading cause of cancer death worldwide with more than one million cases diagnosed each year. Surgery with curative intent remains the mainstay of management for resectable patients. Identify patients at increased risk of morbidity and mortality is important for the decision making process, with no ideal tool available yet. Review and analysis of the experience of a referral cancer center may generate useful information. Methods. Historical cohort observational study. Patients undergoing gastrectomy for gastric adenocarcinoma at the National Cancer Institute in Bogotá, Colombia, between January 1, 2010 and December 31, 2017 were included. Results. We included 332 patients of which 57.2% were men with mean age of 61 years. Mortality in this series was 4.5% and morbidity was 34.9%. The factor associated with higher risk of death was age with a HR of 1.05 statistically significant value (p=0.021). A higher risk was found in the group of patients with ASA greater than II (p=0.009). The 17.4% presented complications greater than IIIA of the Clavien Dindo classification. Conclusions. In this study morbidity and mortality seem similar to those reported in the literature. Only age and ASA score showed an association with significant statistical value for postoperative complications