Design of a new cell penetrating peptide for DNA, siRNA and mRNA delivery.

BACKGROUND: Delivery systems, including peptide-based ones, that destabilize endosomes in a pH-dependent manner are increasingly used to deliver cargoes of therapeutic interest, such as nucleic acids and proteins into mammalian cells. METHODS: The negatively charged amphipathic alpha-helicoidal forming peptide named HELP (Helical Erythrocyte Lysing Peptide) is a derivative from the bee venom melittin and was shown to have a pH-dependent activity with the highest lytic activity at pH 5.0 at the same time as becoming inactive when the pH is increased. The present study aimed to determine whether replacement in the HELP peptide of the glutamic acid residues by histidines, for which the protonation state is sensitive to the pH changes that occur during endosomal acidification, can transform this fusogenic peptide into a carrier able to deliver different nucleic acids into mammalian cells. RESULTS: The resulting HELP-4H peptide displays high plasmid DNA, small interfering RNA and mRNA delivery capabilities. Importantly, in contrast to other cationic peptides, its transfection activity was only marginally affected by the presence of serum. Using circular dichroism, we found that acidic pH did not induce significant conformational changes for HELP-4H. CONCLUSIONS: In summary, we were able to develop a new cationic histidine rich peptide able to efficiently deliver various nucleic acids into cells.

Experience of discrimination during COVID-19 pandemic: the impact of public health measures and psychological distress among refugees and other migrants in Europe.

BACKGROUND: The COVID-19 pandemic has had a disproportionately hard impact on refugees and other migrants who are often exposed to the virus with limited means to protect themselves. We tested the hypothesis that during the COVID-19 pandemic, refugees and other migrants have suffered a negative impact on mental health and have been unjustly discriminated for spreading the disease in Europe (data collection from April to November 2020). METHODS: Participants in the ApartTogether Survey (N = 8297, after listwise deletion of missing items final N = 3940) provided data regarding to their difficulties to adhere to preventive recommendations against COVID-19 infection (CARE), self-perceived stigmatization (SS), and psychological distress (PD). Structural Equation Modeling was used to investigate PD as a mediator in the pathway linking CARE to SS, while adjusting for the housing and residence status. To improve confidence in the findings, single hold-out sample cross-validation was performed using a train/test split ratio of 0.8/0.2. RESULTS: In the exploratory set (N = 3159) SS was associated with both CARE (B = 0.200, p < 0.001) and PD (B = 0.455, p < 0.001). Moreover, PD was also associated with CARE (B = 0.094, p = 0.001) and mediated the effect of CARE on SS (proportion mediated = 17.7%, p = 0.001). The results were successfully replicated in the confirmation set (N = 781; total effect = 0.417, p < 0.001; proportion mediated = 29.7%, p < 0.001). Follow-up analyses also found evidence for an opposite effect (i.e., from SS to CARE, B = 0.132; p < 0.001), suggesting that there might be a vicious circle between the self-perceived stigmatization and the access to health care and the use of preventive measures against COVID-19 infection. CONCLUSIONS: Refugees and other migrants who had more difficulties in accessing health care and preventive measures against COVID-19 infection experienced worse mental health and increased discrimination. These negative effects appeared to be stronger for those with more insecure housing and residence status, highlighting from one side the specific risk of insecure housing in the impact of COVID-19 upon mental health and infection protection, and for another side the need to proper housing as a strategy to prevent both COVID-19 and mental distress.

Superdiversity, migration and use of internet-based health information - results of a cross-sectional survey conducted in 4 European countries.

BACKGROUND: Studies of factors associated with the use of Internet-based health information generally focus on general, rather than migrant populations. This study looked into the reasons why Internet-based health information is used and the effects of migration-related factors, other socio-demographic characteristics and health-related factors on the tendency to consult the Internet. METHODS: In a cross-sectional survey conducted in eight superdiverse neighbourhoods - two each in Birmingham, United Kingdom; Bremen, Germany; Lisbon, Portugal and Uppsala, Sweden - participants were presented with six scenarios and asked to indicate the resources they most relied on when addressing a health concern from a given list. The scenarios included establishing the underlying causes of a health concern and seeking information about prescription drugs, treatments and services available as part of the public healthcare system. The list of resources included the public healthcare system, alternative medicine, family and friends, and the Internet. Frequencies for which the Internet was consulted for each different scenario were calculated and compared across the participating cities. The association between consulting Internet-based health information and migration-related factors, and further socio-demographic characteristics as well as health-related factors such as self-reported health and health literacy was assessed using multivariable logistic regressions. RESULTS: Of the 2570 participants from all four cities who were included in the analyses, 47% had a migrant background and 35% originated from non-EU countries. About a third reported relying on Internet-based health information for at least one of the given scenarios. The two most frequently chosen scenarios were to find out about other possible treatments and prescription drugs. Generally, using Internet-based health information was negatively associated with being a first generation migrant (OR 0.65; 95% CI 0.46-0.93), having poor local language competency (OR 0.25; 95% CI 0.14-0.45), older age (≥60 years, OR 0.21; 95% CI 0.15-0.31), low education (OR 0.35; 95% CI 0.24-0.50) and positively associated with low trust in physicians (OR 2.13; 95% CI 1.47-3.10). CONCLUSION: Our findings indicate the need to consider migration background and language competency when promoting the provision of healthcare services via the Internet so that information and services are widely accessible.

'If there were doctors who could understand our problems, I would already be better': dissatisfactory health care and marginalisation in superdiverse neighbourhoods.

How people in community settings describe their experience of disappointing health care, and their responses to such dissatisfaction, sheds light on the role of marginalisation and underlines the need for radically responsive service provision. Making the case for studying unprompted accounts of dissatisfaction with healthcare provision, this is an original analysis of 71 semi-structured interviews with healthcare users in superdiverse neighbourhoods in four European cities. Healthcare users spontaneously express disappointment with services that dismiss their concerns and fail to attend to their priorities. Analysing characteristics of these healthcare users show that no single aspect of marginalisation shapes the expression of disappointment. In response to disappointing health care, users sought out alternative services and to persuade reluctant service providers, and they withdrew from services, in order to access more suitable health care and to achieve personal vindication. Promoting normative quality standards for diverse and diversifying populations that access care from a range of public and private service providers is in tension with prioritising services that are responsive to individual priorities. Without an effort towards radically responsive service provision, the ideal of universal access on the basis of need gives way to normative service provision.

Healthcare bricolage in Europe's superdiverse neighbourhoods: a mixed methods study.

BACKGROUND: Studies of the relationship between diverse populations, healthcare access and health outcomes have been dominated by approaches focusing on ethno-national groups or specific healthcare sectors. Healthcare bricolage conceptualises the processes by which individuals use multiple resources to address health concerns. It is relevant in superdiverse neighbourhoods with complex populations. This paper is original in its application of mixed methods to examine the extent to which, and the reasons why, individuals engage in healthcare bricolage. METHODS: The study utilized a parallel sequential methodology. Eight superdiverse neighbourhoods were selected, two in each of Bremen, Birmingham, Lisbon and Uppsala. Ethnographic research scoping the nature of each healthcare ecosystem was followed by 160 interviews (20 each neighbourhood) with a maximum variation sample of residents undertaken October 2015 to December 2016. Interviewees were asked to recall a health concern and describe actions taken to attempt resolution. Data was coded with a MAXQDA codebook checked for inter-coder reliability. Interview findings enabled identification of five types of bricolage, the nature of healthcare resources utilised and the factors which influenced residents' tactics. Results were used to design a household survey using new questions and validated epidemiological instruments implemented January to October 2017. Respondents were identified using random address files and interviewed in person or by telephone. Multinomal logistic regressions were used to estimate the effect of changing the values of determinants on the probability of observing an outcome. RESULTS: Age, gender, level of education, migration background and extent of functional limitation were associated with bricolage tactics. Individuals demonstrating high levels of agency were more likely than those with low levels to engage in bricolage. Residents with high levels of trust in physicians were less likely to bricolage than those with lower levels of trust. Levels of health literacy showed no significant effects. CONCLUSIONS: The nature and severity of health concern, trust in physicians and agency shaped residents' bricolage tactics. The concept of bricolage enabled us to make visible the actions and resources utilised around public healthcare systems that would otherwise remain outwith healthcare access research. Actions were frequently undertaken via networks offering insights into healthcare-seeking behaviour.

Understanding healthcare practices in superdiverse neighbourhoods and developing the concept of welfare bricolage: Protocol of a cross-national mixed-methods study.

BACKGROUND: Diversity in Europe has both increased and become more complex posing challenges to both national and local welfare state regimes. Evidence indicates specific barriers for migrant, faith and minority ethnic groups when accessing healthcare. However, previous studies of health in diverse cities in European countries have mainly adopted an ethno-national focus. Taking into account the new complexity of diversity within cities, a deeper and multi-faceted understanding of everyday health practices in superdiverse contexts is needed to support appropriate healthcare provision. METHODS/DESIGN: This protocol describes a mixed method study investigating how residents in superdiverse neighbourhoods access healthcare. The study will include participant observation and qualitative interviewing as well as a standardised health survey and will be carried out in eight superdiverse neighbourhoods - with varying deprivations levels and trajectories of change - in four European countries (Germany, Portugal, Sweden and UK). In each neighbourhood, trained polylingual community researchers together with university researchers will map formal and informal provision and infrastructures supportive to health and healthcare. In-depth interviews with residents and healthcare providers in each country will investigate local health-supportive practices. Thematic analysis will be used to identify different types of help-seeking behaviours and support structures across neighbourhoods and countries. Using categories identified from analyses of interview material, a health survey will be set up investigating determinants of access to healthcare. Complex models, such as structural equation modelling, will be applied to analyse commonalities and differences between population groups, neighbourhoods and countries. DISCUSSION: This study offers the potential to contribute to a deeper understanding of how residents in superdiverse neighbourhoods deal with health and healthcare in everyday practices. The findings will inform governmental authorities, formal and informal healthcare providers how to further refine health services and how to achieve equitable access in diverse population groups.

Adaptive horizontal transfer of a bacterial gene to an invasive insect pest of coffee.

Horizontal gene transfer (HGT) involves the nonsexual transmission of genetic material across species boundaries. Although often detected in prokaryotes, examples of HGT involving animals are relatively rare, and any evolutionary advantage conferred to the recipient is typically obscure. We identified a gene (HhMAN1) from the coffee berry borer beetle, Hypothenemus hampei, a devastating pest of coffee, which shows clear evidence of HGT from bacteria. HhMAN1 encodes a mannanase, representing a class of glycosyl hydrolases that has not previously been reported in insects. Recombinant HhMAN1 protein hydrolyzes coffee berry galactomannan, the major storage polysaccharide in this species and the presumed food of H. hampei. HhMAN1 was found to be widespread in a broad biogeographic survey of H. hampei accessions, indicating that the HGT event occurred before radiation of the insect from West Africa to Asia and South America. However, the gene was not detected in the closely related species H. obscurus (the tropical nut borer or "false berry borer"), which does not colonize coffee beans. Thus, HGT of HhMAN1 from bacteria represents a likely adaptation to a specific ecological niche and may have been promoted by intensive agricultural practices.

Production of lactulose oligosaccharides by isomerisation of transgalactosylated cheese whey permeate obtained by ß-galactosidases from dairy Kluyveromyces.

ß-Galactosidases from Kluyveromyces lactis and Kluyveromyces marxianus isolated from artisanal ewes' milk cheeses, were used to transgalactosylate lactose from cheese whey permeate (WP). The content of galactooligosaccharides (GOS) obtained by transgalactosylation was comparable with that formed using pure lactose as substrate. In order to obtain a mixture with higher prebiotic oligosaccharide content, isomerisation of the transgalactosylated WP was carried out using sodium aluminate as catalyst. The transgalactosylated mixtures at 6 h of reaction contained amounts of prebiotic carbohydrates (tagatose, lactulose, GOS and oligosaccharides derived from lactulose, OsLu) close to 50 g/100 g of total carbohydrates for all the strains tested, corresponding to 322 g prebiotics/kg whey permeate. Thus, the suitability of this methodology to produce mixtures of dietary non-digestible carbohydrates with prebiotic properties from WP has been demonstrated, which is interesting for the food industry since it increases the value and the applicability of this by-product from cheese manufacture.

Applicability of in vitro methods to study patulin bioaccessibility and its effects on intestinal membrane integrity.

In human health risk assessment, ingestion of food is considered a major route of exposure to many contaminants, although the total amount of an ingested contaminant (external dose) does not always reflect the quantity available for the body (internal dose). In this study, two in vitro methods were applied to study bioaccessibility and intestinal membrane integrity of cells exposed to patulin, a mycotoxin with significant public health risk. Seven artificially contaminated fruit juices were assayed in the presence or absence of a standard meal, showing a significant difference for bioaccessibility values between contaminated samples alone (mean 27.65 ± 13.50%) and combinations with a standard meal (mean 7.89 ± 4.03%). Different concentrations of patulin (PAT) and cysteine (CYS) (protector agent) were assayed in Caco-2 cells monolayers. At 95 µM, PAT produced a marked decrease in transepithelial electrical resistance (TEER). This effect was significantly reduced when 400 µM and 4000 µM CYS was added to the cells. Combined use of in vitro digestion models with other techniques using intestinal cell lines, such as in vitro intestinal absorption models that use Caco-2 cells, may offer a more comprehensive model of what is occurring during digestion and absorption processes. The study of beneficial effects of protective agents would also be enhanced.

Yeast species and genetic heterogeneity within Debaryomyces hansenii along the ripening process of traditional ewes' and goats' cheeses.

The yeasts present during the ripening process of ewes' and goats' cheeses produced in a small traditional dairy in Mediterranean Spain were isolated and identified. Five hundred and thirty strains pertaining to eleven yeast species representing eight genera were identified using molecular methods. Debaryomyces hansenii was the yeast species most frequently isolated in all cheeses. Other yeast species commonly found in dairy products were present at the first maturing weeks. Two yeast species Trichosporon coremiiforme and Trichosporon domesticum have been reported in cheeses for the first time, and Meyerozyma guilliermondii has been newly isolated from goats' cheeses. Yeast species composition changed greatly along the process; although, D. hansenii dominated at the end of ripening in all cheeses. Most yeast isolates were able to hydrolyze casein and fatty acid esters. One hundred and eighty seven D. hansenii isolates were genotyped by PCR amplification of M13 satellites and an UPGMA dendrogram was constructed. The majority of isolates were grouped in 5 clusters while 7 profiles were represented by 1-3 isolates. These results demonstrate the genetic heterogeneity present in D. hansenii strains isolated from raw milk cheeses.

Fecal contamination of food, water, hands, and kitchen utensils at the household level in rural areas of Peru.

The study described in this article evaluated sources of contamination of children's food and drinking water in rural households in the highlands of Peru. Samples from children's meals, drinking water, kitchen utensils, and caregivers' and children's hands were analyzed for total coliforms and E. coli counts using Petrifilm EC. Thermotolerant coliforms in water were measured using DelAgua test kits while diarrheagenic E. coli was identified using polymerase chain reaction methods (PCR). Thermotolerant coliforms were found in 48% of all water samples. E. coli was found on 23% of hands, 16% of utensils, and 4% of meals. Kitchen cloths were the item most frequently contaminated with total coliforms (89%) and E. coli (42%). Diarrheagenic E. coli was found in 33% of drinking water, 27% of meals, and on 23% of kitchen utensils. These findings indicate a need to develop hygiene interventions that focus on specific kitchen utensils and hand washing practices, to reduce the contamination of food, water, and the kitchen environment in these rural settings.

"Having a family is the new normal": Parenting in neoliberal academia during the COVID-19 pandemic.

The outbreak of the COVID-19 pandemic has made explicit the burden of care shouldered by academic mothers, in addition to juggling their scholarly commitments. Although discussions are abundant on the impact of caring responsibilities on the careers of women academics, neoliberal academia continues to minimize such struggles. Despite the disruptions to family routines caused by the health crisis, academic institutions have expected academic mothers and fathers to continue undertaking their professional responsibilities at the same level as before, disregarding their parenting demands. This paper contributes to the research on parenthood in academia by looking at how, throughout the pandemic, academic parents have negotiated the tensions between parenthood and academic demands, and by investigating the strategies they use to confront neoliberal culture of academic performativity, even amid the health crisis. The paper engages with the "space invaders" concept used by Puwar (2004) to analyze the "hypervisibility" of academic mothers' and fathers' "bodies out of place" during the pandemic, and to investigate their "renegade acts" against the uncaring attitudes of their institutions. Evidence is drawn from a qualitative study conducted during December 2020 and January 2021 among scholars affiliated to Portuguese academic institutions: 17 in-depth interviews conducted with women, and two mixed-gender focus groups. Our results research reveal how the experiences of academic mothers and fathers were not uniform during the pandemic. In addition, it shows how, despite their commitment to their academic responsibilities, these parents have crafted various resistance strategies to confront the institutional pressure to continue maintain their working routines, and instead positioning themselves as "more than just academics."

Mental Health of Refugees and Migrants during the COVID-19 Pandemic: The Role of Experienced Discrimination and Daily Stressors.

The COVID-19 pandemic is a defining global health crisis of our time. While the impact of COVID-19, including its mental health impact, is increasingly being documented, there remain important gaps regarding the specific consequences of the pandemic on particular population groups, including refugees and migrants. This study aims to uncover the impact of the COVID-19 pandemic on the mental health of refugees and migrants worldwide, disentangling the possible role of social and daily stressors, i.e., experiences of discrimination and daily living conditions. Descriptive analysis and structural equation modeling were used to analyze the responses of N = 20,742 refugees and migrants on the self-reporting global ApartTogether survey. Survey findings indicated that the mental health of refugees and migrants during the COVID-19 pandemic was significantly impacted, particularly for certain subgroups, (i.e., insecure housing situation and residence status, older respondents, and females) who reported experiencing higher levels of increased discrimination and increases in daily life stressors. There is a need to recognize the detrimental mental health impact of the COVID-19 pandemic on particular refugee and migrant groups and to develop interventions that target their unique needs.

"It's the First Barrier" - Lack of Common Language a Major Obstacle When Accessing/Providing Healthcare Services Across Europe.

International migration is shaping and changing urban areas as well as impacting on healthcare access and provision in Europe. To investigate how residents of superdiverse neighborhoods put together their healthcare, we conducted qualitative interviews with 76 healthcare providers and 160 residents in four European cities - Bremen, Germany; Birmingham, UK; Lisbon, Portugal and Uppsala, Sweden, between September 2015 and April 2017. A common theme arising from the data was language and communication obstacles, with both healthcare providers and users experiencing language difficulties, despite all four countries having interpretation policies or guidelines to address language barriers in healthcare. Official interpreter services were seen to be unreliable and sometimes of poor quality, leading to a reliance on informal interpretation. Some coping strategies used by both service providers and users led to successful communication despite the lack of a common language. Where communication failed, this led to feelings of dissatisfaction and frustration among both users and providers. Language difficulties came up across all participating countries even though this was not prompted by interview questions, which highlights the widespread nature of language barriers and communication barriers and the need to address them in order to promote equal accessibility to good quality healthcare.

Multicomponent Exercise Training Combined with Nutritional Counselling Improves Physical Function, Biochemical and Anthropometric Profiles in Obese Children: A Pilot Study.

Aerobics or strength exercise plus diet interventions have been shown to counteract childhood obesity. However, little is known with regard to periodized multicomponent exercise interventions combined with nutritional counselling, which might be less demanding but more enjoyable and respectful of children and adolescents' nature. In order to analyze the impact of such a multimodal approach, 18 obese children (10.8 ± 1.6 years; 63% females; z Body Mass Index 3 ± 0.4) trained for 60 min, twice weekly and were measured for body composition, biochemical parameters and physical function. We found that 16 weeks of multimodal intervention (14 of training), based on fun-type skill-learning physical activities and physical conditioning with challenging circuits and games, together with nutritional counselling, led to an attendance > 80%, with significant overall health improvement. Body composition was enhanced (p < 0.01 for z BMI, mid-upper-arm-circumference, waist-to-height ratio, tricipital and subscapular skinfolds, body-fat % by Slaughter equation and Dual energy X-ray absorptiometry body fat% and trunk fat%), as well as metabolic profile (LDL cholesterol, gamma-glutamyl transferase , alanine aminotransferase ; p < 0.05), homeostatic model assessment of insulin resistance (HOMA-IR; p < 0.05) and inflammatory response (C-Reactive Protein; p < 0.05). Physical fitness was also improved (p < 0.01) through better cardiovascular test scores and fundamental movement patterns (Functional Movement Screen-7, FMS-4). Tailoring multimodal supervised strategies ensured attendance, active participation and enjoyment, compensating for the lack of strict caloric restrictions and the low volume and training frequency compared to the exercise prescription guidelines for obesity. Nutritional counselling reinforced exercise benefits and turned the intervention into a powerful educational strategy. Teamwork and professionals' specificity may also be key factors.

Access to healthcare in superdiverse neighbourhoods.

To date little attention has been focused on how the differing features of 'superdiverse' neighbourhoods shape residents' access to healthcare services. Through utilising a cross-national mixed-methods approach, the paper highlights how defining features of superdiverse neighbourhoods - 'newness', 'novelty' and 'diversity' - influence a number of neighbourhood 'domains' and 'rules of access' that regulate access to healthcare. Issues of uncertainty, affordability, compliance, transnationalism and the diversity of community and local sociability are identified as being particularly significant, but which may vary in importance according to the nationality, ethnicity and / or religion of particular individuals.

Social Violence Increases the Risk of Suicidal Ideation Among Undergraduate Medical Students.

BACKGROUND: Depression is highly prevalent worldwide, and may have fatal consequences. Violence is associated to psychopathology and has exponentially increased in some areas of Mexico. Healthcare professionals are vulnerable to increased anxiety, depression, suicide and lately, to violence by organized crime. The aim of the study was to determine the prevalence of anxiety/depression/suicidal ideation and the weight of social violence as a risk factor. METHODS: Cross sectional study in three generations of undergraduate medical students at entry to internship year in our institution. All students voluntarily agreed to participate. All of them answered Beck and HAM-A. Two generations also responded Plutchik suicidal risk inventory. Sex, type of university and degree of violence in their geographic areas were also recorded. Prevalence rates were calculated for each outcome. χ2 tests and odds ratio (OR) for bivariate analysis, and Mantel-Hanezel to adjust according to level of violence. RESULTS: All of the eligible students responded the anxiety and inventories (n = 8,858), and 6,451 also responded the suicide risk test. Overall, 37.2% displayed severe anxiety, 14.9% moderate/severe depression and 8.5% suicidal ideation. Female sex and private university increased the risk for anxiety and depression. High violence, severe anxiety or depression increased the risk for suicidal ideation. Adjusted by violence zone, female sex, being single and the coexistence of depression were associated with a higher risk for suicidal ideation. CONCLUSIONS: Anxiety, depression and suicidal ideation are highly prevalent among premedical interns in Mexico. Living in highly violent areas significantly increases the risk for anxiety/depression/suicidal ideation.

Sequential Inoculation of Native Non-Saccharomyces and Saccharomyces cerevisiae Strains for Wine Making.

The use of non-Saccharomyces yeast for wine making is becoming a common trend in many innovative wineries. The application is normally aimed at increasing aromas, glycerol, reducing acidity, and other improvements. This manuscript focuses on the reproduction of the native microbiota from the vineyard in the inoculum. Thus, native selected yeasts (Hanseniaspora uvarum, Metschnikowia pulcherrima, Torulaspora delbrueckii, Starmerella bacillaris species and three different strains of Saccharomyces cerevisiae) were inoculated sequentially, or only S. cerevisiae (three native strains together or one commercial) was used. Inoculations were performed both in laboratory conditions with synthetic must (400 mL) as well as in industrial conditions (2000 kg of grapes) in red winemaking in two different varieties, Grenache and Carignan. The results showed that all the inoculated S. cerevisiae strains were found at the end of the vinifications, and when non-Saccharomyces yeasts were inoculated, they were found in appreciable populations at mid-fermentation. The final wines produced could be clearly differentiated by sensory analysis and were of similar quality, in terms of sensory analysis panelists' appreciation.

[Risk factors associated with preterm birth in a second level hospital]. / Factores de riesgo asociados a parto pretérmino en un hospital de segundo nivel de atención.

BACKGROUND: Preterm birth is one of the biggest problems in obstetrics and gynecology, given that it has an incidence of 10-11%. The objective was to identify the risk factors associated with a preterm birth. METHODS: A retrospective, observational, transversal and analytic case-control study was made. All premature birth incidences were determined as study objects and controls were integrated with term deliveries. A sample size of 344 patients with a control per case was calculated. A total of 688 patients were studied. Statistical analysis was descriptive, univariate and bivariate and we used the Pearson chi square test, with a p < 0.05, odds ratios (OR) and 95% confidence intervals (95% CI). RESULTS: The risk factors associated with a preterm labor were placenta praevia: OR = 10.2 (p = 0.005); previous preterm delivery: OR = 10.2 (p = 0.005); preeclampsia: OR = 6.38 (p = 0.00); twin pregnancy: OR = 5.8 (p = 0.000); oligohydramnios: OR = 5.8 (p = 0.000); tobacco use: OR = 4.6 (p = 0.002); premature rupture of membranes (PROM): OR = 4.1 (p = 0.000); cervicovaginitis: OR = 3 (p = 0.000); urinary tract infections (UTI): OR = 1.5 (p = 0.010). CONCLUSION: Maternal history of prenatal care, preclampsia, PROM, twin pregnancy, placenta praevia, cervicovaginitis, previous preterm delivery and UTI are risk factors with statistical significance associated with preterm delivery.

Introducción: el parto pretérmino es uno de los mayores problemas en obstetricia, pues presenta una incidencia de 10-11%. El objetivo fue identificar los factores de riesgo asociados al parto pretérmino. Métodos: se realizó un estudio de casos y controles, observacional, retrospectivo, transversal y analítico. Los casos estuvieron constituidos por nacimientos prematuros y los controles por los partos a término. Se calculó un tamaño de muestra de 344 pacientes con un control por cada caso. El total de pacientes estudiados fue de 688. El análisis estadístico fue descriptivo, univariante y bivariante mediante la prueba chi cuadrada de Pearson, con una p < 0.05, razón de momios (RM) e intervalos de confianza al 95% (IC 95%). Resultados: los factores de riesgo asociados a parto pretérmino fueron la placenta previa: RM = 10.2 (p = 0.005); el antecedente de parto pretérmino: RM = 10.2 (p = 0.005); la preeclampsia: RM = 6.38 (p = 0.00); el embarazo gemelar: RM = 5.8 (p = 0.000), el oligohidramnios: RM = 5.8 (p = 0.000); el tabaquismo = RM = 4.6 (p = 0.002), la ruptura prematura de membranas: RM = 4.1 (p = 0.000); la cervicovaginitis: RM = 3 (p = 0.000); la infección del tracto urinario: RM = 1.5 (p = 0.010). Conclusión: los antecedentes maternos, como el control prenatal, la preeclampsia, la ruptura prematura de membranas, el embarazo gemelar, la placenta previa, la cervicovaginitis, el parto pretérmino previo y la infección del tracto urinario son los factores de riesgo con mayor significación estadística.

[Risk factors and clinical features of ectopic pregnancy]. / Factores de riesgo y características clínicas del embarazo ectópico.

BACKGROUND: Ectopic pregnancy (EP) is the most frequent cause of maternal death in the first trimester of pregnancy. The objective was to establish the clinical features and risk factors associated with EP. METHODS: Observational, retrospective, transversal and analytic case-control study. Two groups were included: the cases group (28 patients) and the control group (56 postpartum patients). Univariate and bivariate descriptive statistical analysis were carried out using the Pearson chi-square test, p < 0.05, with odds ratios (OR) and 95% confidence intervals (95% CI). RESULTS: Statistically significant values (OR) were: smoking: 18.33, history of EP: 11.96, IUD use: 11.9, abdominal surgery: 5.87, being multigravid: 3.80, and having two or more sexual partners: 2. The most common clinical symptom was pelvic pain with 57.1% (16), right ruptured EP 53.6%, tubal pregnancy 82.1% (23), unruptured EP 60.7% (17), hemoperitoneum 60.7% (17). Gestational age for EP was of 4-8 weeks (75%) and surgical treatment 96.4%. CONCLUSIONS: The frequency of EP found in our population was 1 in every 122 live births. Risk factors associated with ectopic pregnancy with statistically higher values were: smoking, being multigravid, having a clinical record of EP, IUD use before conception, abdominal surgery. The more frequent clinical characteristics were pelvic pain, right EP, tubal pregnancy, EP with no ruptures, hemoperitoneum < 750 ml, a gestational age between four and eight weeks.

Introducción: el embarazo ectópico (EE) es la causa más frecuente de muerte materna en el primer trimestre de embarazo. Se buscó determinar las características clínicas y los factores de riesgo asociados a EE. Métodos: estudio de casos y controles, observacional, retrospectivo, transversal y analítico. Se incluyeron dos grupos: casos (28 pacientes) y controles (56 pacientes puérperas). Se hizo un análisis estadístico descriptivo con univariante y bivariante mediante chi cuadrada de Pearson (p < 0.05), con razones de momios (RM) e intervalos de confianza al 95% (IC al 95%). Resultados: la RM del hábito tabáquico fue de 18.33, la del antecedente de EE de 11.96, uso de DIU: 11.9, cirugía abdominal: 5.87, ser multigesta: 3.80, tener dos o más parejas sexuales: 2. El síntoma clínico más común fue el dolor pélvico abdominal con 57.1% (16), EE derecho 53.6%, embarazo tubárico 82.1% (23), EE no roto 60.7% (17), hemoperitoneo 60.7% (17). La edad gestacional para EE fue de 4-8 semanas (75%) y el tratamiento quirúrgico de 96.4%. Conclusión: la frecuencia de EE fue de 1 por cada 122 nacidos vivos. Los factores de riesgo para EE con valores estadísticos más altos fueron: consumir tabaco, tener dos o más parejas sexuales, ser multigesta, tener antecedente de EE, usar DIU antes de la concepción, haber sido sometida a cirugías abdominales. Las características clínicas más frecuentes fueron el dolor pélvico abdominal, EE derecho, embarazo tubárico, EE no roto, hemoperitoneo < 750 mL y una edad gestacional entre cuatro y ocho semanas.