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Competing Interests: Declaration of competing interest The co-authors agree with the content of the manuscript text, certifying that each one had an individual contribution to the research process and participated in the writing. Likewise, the authors certify that the manuscript is an original work and is not in the process of being sent to another journal, and there is no conflict of interest. Additionally, all the authors declare that they have no conflict of interest that must be declared, and it is clarified that no funding source was used for the writing of this manuscript.

Objective: To assess the impact of the COVID-19 pandemic on routine childhood vaccination coverage in Colombia by age group, rural/urban residence, state and vaccine type., Design: Ecological study of official monthly vaccination records., Setting: Vaccination records from the Colombian Ministry of Health (March-October 2019 and 2020)., Participants: Aggregated data for Colombian children (<12 months, n=676 153; 12-23 months, n=700 319; and 5 years, n=734 295) participating in the Expanded Program on Immunization., Main Outcome Measures: Proportion of eligible population receiving vaccination., Results: Vaccination coverage showed an overall decline of approximately 14.4% from 2019 to 2020 (2019 coverage=76.0, 2020 coverage=61.6%). The greatest reduction in proportion vaccinated was observed in children <12 months of age for pneumococcal vaccine (second dose) (2019 coverage=81.4%; 2020 coverage=62.2%; 2019-2020 absolute difference, 19.2%; 95% CI 14.8% to 23.7%). For children aged 12-23 months, the proportion vaccinated for yellow fever declined by 16.4% (12.4% to 20.9%) from 78.3% in 2019 to 61.8% in 2020. Among children 5 years of age, the biggest decrease occurred for the oral polio vaccine (second dose), with a difference of 11.4% (7.1% to 15.7%) between 2019 and 2020 (73.1% and 61.7% for 2019 and 2020). We observed a statistically significant effect on vaccine coverage in rural versus urban areas for children <12 months and 5 years of age., Conclusions: Reduced uptake of immunisations during the COVID-19 pandemic poses a serious risk of vaccine-preventable disease outbreaks. Colombia and other middle-income countries need to continue to monitor immunisation programme coverage and disease outbreaks at the national and subnational levels and undertake catch-up vaccination activities., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)

Background: The current SARS-CoV-2 pandemic has especially affected individuals living in conglomerate settings having poverty as common characteristic. However, evidence of the association between COVID-19 severity and social determinants is still scarce, particularly, for Latin American countries. The objective was to assess the effect of socioeconomic deprivation in the clinical severity of COVID-19 infection among different localities of Bogotá, Colombia., Methods: Secondary analyses using data of SARS-CoV-2 infected cases in Bogotá from 6 March 2020 to 19 April 2020 were carried out. Direct and indirect indicators of deprivation at area level and individual demographic characteristics (age, sex and type of case) were included in the analyses., Findings: 1684 COVID-19 cases were included in the study. There were 217 (12.9%; 95% CI 11.3 to 14.5) serious cases, of which 32.6% (95% CI 26.4 to 38.8) cases were deceased. In the multilevel logistic regression, age, sex (female), type of case (different of imported case), number of serious cases recorded the previous day and multidimensional poverty were associated with serious cases (median OR: 1.72, 95% CI 1.56 to 1.87)., Interpretation: This paper explored the association between COVID-19 severity and social determinants. Expressions of poverty were associated with more severe cases during first 2 months of pandemic. It is a clear syndemic for the joint presentation of COVID-19 and other comorbidities among more serious cases., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)

Multimorbidity (MM) prevalence among older adults is increasing worldwide. Variations regarding the socioeconomic characteristics of the individuals and their context have been described, mostly in high-income settings. However, further research is needed to understand the effect of the coexistence of infectious diseases along with socioeconomic factors regarding MM. This study aims to examine the variation of MM regarding infectious diseases mortality after adjusting for socioeconomic factors. A cross-sectional multilevel study with a nationally representative sample of 17,571 Colombian adults of 60 years of age or older was conducted. Individual socioeconomic, demographic, childhood and health related characteristics, as well as group level variables (multidimensional poverty index and infectious diseases mortality rate) were analyzed. A two-level stepwise structural equation model was used to simultaneously adjust for the individual and contextual effects. Multimorbidity prevalence was 62.3% (95% CI 61.7-62.9). In the multilevel adjusted models, age, female sex, having functional limitations, non-white ethnicity, high body mass index, higher income, physical inactivity and living in urban areas were associated with multimorbidity among the sample for this study. The median odds ratio for multidimensional poverty was 1.18 (1.16-1.19; p = 0.008) and for infectious diseases was 1.25 (1.22-1.28; p = 0.014). This paper demonstrates that MM varies regarding the mortality of infectious diseases and shows a strong association between MM and poverty in a low-middle income country. Differences in the factors involved in the etiology of multimorbidity are expected among wealthy and poor countries regarding availability and prioritization of health services., (© 2021. The Author(s).)

The great concern stemming from the current COVID-19 pandemic has been a challenge for governments and international organizations around the world. Likewise, the diagnosis has played an important role in the prioritization processes, in particular, for the identification and follow-up of cases. In this context, PCR and serological tests have become the international standard; however, some limitations, as well as the scope of these techniques, must be understood in terms of population numbers. This comment seeks to clarify the interpretation of the results of these tests from a public health perspective.

Carpal Tunnel Syndrome (CTS) is one of the most frequently occurring musculoskeletal disorders of the upper limbs. Strategies for preventing CTS in the workplace include interventions such as ergonomics, education, exercise, physical therapy, and occupational health. The purpose of this study was to provide a general overview based on the review of scientific literature regarding strategies used for preventing CTS in working populations. From September to October 2018, the MEDLINE, PUBMED, EMBASE and SCOPUS (1990 to December 2017) databases were searched for evidence. The risk of bias assessment in the selected papers was evaluated using the criteria recommended by The Cochrane Handbook and the methodological quality of the included studies was evaluated using Standard Quality Assessment Criteria for Evaluating Primary Research Papers from a Variety of Fields. A total of 11 studies were included in the present review. A total of 1,061 subjects participated in the studies. The quality of the included studies was limited in three studies, appropriate in three studies, good in three studies, and strong in two studies. The overall results suggest a mixed level of evidence of the effect of applying strategies for preventing CTS in the workplace. The bias assessment was primarily due to incomplete result data, selective reporting of results, and blinding. In this review, interventions focused on the modification or change of accessories (keyboard, mouse, wrist rest, and the overall workstation), education in ergonomics, exercise, and physical therapies, among others, were analyzed. The findings of this review show different possibilities when choosing an intervention strategy for the workplace. However, it was challenging to analyze each of the papers owing to the heterogeneity of the studies included., (Copyright © 2020. Published by Elsevier Ltd.)

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) has led to the elaboration of multiple studies to increase knowledge and understanding, hence, having the ability to accomplish an adequate and timely diagnosis and give an optimal treatment according to the patient's condition. The clinical manifestations of COVID-19 pose a series of challenges both in understanding and delimiting the disease secondary to the SARS-CoV-2 infection. This is due to the fact that the main axis of this disease is the endothelial compromise and the production of a "cytokine storm," triggering multiple organ failure and death. Given that a complete understanding of its pathophysiology and clinical behavior has not yet been achieved, we wondered if coinfection with other respiratory viruses modifies its performance and outcomes described so far. A literature search was performed, obtaining 68 articles, of which 25 were analyzed. The analysis showed us that there is a high variety both in the types of associated infections and in the clinical behavior of patients and their outcomes. Therefore, we consider that the search for other infections should be performed exhaustively, especially in those cases that may be susceptible to treatment such as Influenza A, human immunodeficiency virus, or bacterial infections. As well as optimize the analysis of these cases and establish if there are characteristics that allow establishing the possibility of carrying an additional infection to that of SARS-CoV-2 and the implications for the management and prognosis of the patient., (© 2020 Wiley Periodicals LLC.)

This study aimed to identify the main regional factors associated with variations in the prevalence of functional limitation on the older adult in Colombia adjusted by individual characteristics. This multilevel study used cross-sectional data from 23,694 adults over 60 years of age in the SABE, Colombia nationwide survey. State-level factors (poverty, development, inequity, violence, health coverage, and access to improved water sources), as well as individual health related, socioeconomic and demographic characteristics, were analyzed. The overall prevalence of functional impairment for the basic activities of daily living (ADL) was 22%. The presence of comorbidities, low educational level, physical inactivity, no participation in social groups, mistreatment and being over 75 years old were associated with functional limitation. At the group level, the analysis showed significant differences in the functional limitation prevalence across states, particularly regarding the socioeconomic status measured according to the Human Development Index (median OR = 1.22; 95%CI: 1.13-1.30; p = 0.011). This study provides evidence on the impact of socioeconomic variation across states on FL prevalence in the Colombian elderly once adjusted for individual characteristics. The findings of this study, through a multilevel approach methodology, provide information to effectively address the conditions that affect the functionality in this population through the identification and prioritization of public health care in groups with economic and health vulnerability.

Introduction and Objectives: Percutaneous coronary intervention for coronary bifurcations is usually associated with a low success rate, a high rate of complications, and a more frequent need for target lesion revascularization. The aim of this prospective study was to evaluate immediate and medium-term clinical and angiographic outcomes after the application of crush T stenting., Methods: This approach to bifurcation stenting follows the same steps as modified T stenting. The only difference is that the side branch stent protrudes 3-4 mm into the main vessel from the carina. The aim is to ensure that the circumference of the side branch ostium is covered by the stent strut., Results: Between December 2003 and February 2005, 82 patients were included in the study. The lesion involved the left main coronary artery in 53% of patients, the left anterior descending or diagonal coronary artery in 29%, the circumflex or marginal branch in 11%, and the right coronary artery or the posterior or posterolateral descending branch in 7%. Angiographic and clinical success was obtained in 100% and 96.4% of cases, respectively. Final dilatation was performed using a kissing balloon in 87%. Overall, 100% of patients were followed up clinically for 12 months and 77% were followed up angiographically for a mean of 8.7 (3.3) months. Target lesion revascularization was performed in 9 patients (10.8%)., Conclusions: Treatment of coronary bifurcation lesions using the crush T stenting technique is safe and effective. It reduces both the restenosis rate and the major adverse cardiac event rate at one year.