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case control » caso control (Expander búsqueda), de control (Expander búsqueda), con control (Expander búsqueda)
para case » para base (Expander búsqueda), para casa (Expander búsqueda), para cafe (Expander búsqueda)
1
artículo
Publicado 2019
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Case-control studies are analytical observational epidemiological studies generally devoted to evaluate factors associated with infrequent diseases. Its hierarchy within the pyramid of evidence lies in an intermediate place between cross sectional and cohort studies. The measure of association used for these studies is the Odds Ratio. Some variants of this design, such as incident and nested case studies and nested case-control studies (within a cohort) can reduce the risk of selection bias. The basic concepts related to this type of studies are reviewed.
2
artículo
Publicado 2019
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Los estudios de casos y controles son estudios epidemiológicos observacionales analíticos utilizados generalmente para evaluar factores asociados a condiciones de presentación infrecuente. Su jerarquía dentro de la pirámide de evidencia se ubica en un lugar intermedio, generalmente con un nivel de evidencia considerado mayor que los estudios transversales analíticos y menor que los estudios de cohorte. La medida de asociación utilizada para estos estudios es el Odds Ratio (o razón de momios). Algunas variantes de este diseño como los estudios de casos y controles incidentes y los anidados (dentro de una cohorte) permiten disminuir el riesgo de sesgo de selección. Se revisan los conceptos básicos relacionados a este tipo de estudios.
3
artículo
Publicado 2013
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El objetivo de este trabajo fue realizar un estudio de caso-control para evaluar factores de riesgo en la presentación de leptospirosis canina en pacientes de la Clínica de Animales Menores de la Facultad de Medicina Veterinaria de la Universidad Nacional Mayor de San Marcos, Lima. Se analizaron datos de las historias clínicas y resultados de análisis serológicos de los años 2002 al 2007. Se trabajó con un grupo caso (n=54) y un grupo control (n=394). Los datos se agruparon en las variables sexo, tamaño, edad, temporada del año y residencia, y se analizaron mediante la prueba de regresión logística. Los factores de riesgo asociados a la enfermedad fueron el sexo (el macho presenta el doble de riesgo que la hembra), el tamaño (los perros grandes presentan el doble de riesgo de presentar la enfermedad versus perros pequeños) y la edad (el riesgo es mayor con la edad).
4
artículo
Publicado 2025
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This article presents a detailed analysis of the Ruling issued on July 24, 2024, corresponding to Case No. 0026-2021-PI/TC, which establishes the limits of the sanctioning authority of the Office of the Comptroller General of the Republic. The document examines the aspects and principles that must be considered when the regulator defines or structures conducts that constitute infractions in any matter. The objective of the article is to explore and highlight the delimitation of the sanctioning authority of public entities, with a special focus on the Office of the Comptroller General of the Republic (CGR). In addition, the regulatory framework for the creation of infringing conducts is evaluated.
5
artículo
Objetive: To determine whether dyslipidemia is an independent risk factor for cerebrovascular disease. Material and methods: A case-matched controls by age and sex was performed. The cases were composed of patients with clinical and tomographic diagnosis of cerebrovascular disease and controls for patients with different disease. Both groups underwent dosage serum total cholesterol, LDL cholesterol and triglycerides in the first 24 hours of admission to hospital. Results: A total of 160 patients were studied (80 cases and 80 controls). The average for cases was 64.92 ± 11. 58 years and 64.97 ± 11.42 years controls; 63.75% were of male and 36.25% females (p = 0.798, not significant). Mean serum cholesterol, triglycerides and LDL cholesterol in the cases were 191.4, 130.50 and 120.41 mg / dl; with p = 0.008, 0.001 and 0.060 in cases and controls respectively. The odds ratio between cases...
6
artículo
The aim of the present study was to describe potential risk factors for canine leptospirosis infections in patients of the Small Animal Clinic at the Veterinary School, San Marcos University, Lima, through a case-control study. Data from clinical records and serological test results from 2002 to 2007 were reviewed. Forty four cases and 394 controls were enrolled into the study. Collected data included sex, size, age, season of the year, and origin, and were analyzed by multivariable logistic regression. Risk factors related to the disease were: sex (male has double risk), size (bigger dogs have two times more risk) and age (risk increased with age).
7
artículo
Publicado 2024
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El objetivo del artículo es reportar el desempeño clínico en el control y disminución de la placa bacteriana en pacientes adolescentes mediante un gel y barniz con partículas S-PRG. Se realizaron tratamientos con materiales bioactivos con tecnología GIOMER en 2 pacientes. En el primer caso se realizó una profilaxis con Pro Care Gel (S-PRG) en un paciente de 15 años con problemas neuromotores para eliminar la placa y posteriormente, se aplicó un barniz con partículas de S-PRG para prevenir la formación de biofilm. En el segundo caso, un adolescente de 15 años normoreactivo con inflamación gingival recibió el tratamiento profilaxis con PRG Pro Care Gel. Se observó una disminución de placa bacteriana tras la profilaxis con el gel Pro Care y la aplicación del barniz en el primer caso. Además, existió una baja incidencia de biofilm incluso después de 11 meses de la aplicac...
8
artículo
Carta al editor (sin resumen)
9
artículo
Publicado 2021
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Objective: To determine the clinical, laboratory and epidemiological factors that motivate hospitalization for asthmatic crisis at Yanahuara Hospital, Arequipa-Peru. Material and methods: Observational, prospective, case-control study in which risk factors for hospitalization were studied, comparing 84 hospitalized asthmatic children with 110 control children of the Asthma Program. Results: The highest frequency of hospitalization occurs in the range of 6-12 year-old (51.2 %) majority male (56 %). The associated clinical factors were the fact of presenting previous respiratory symptoms (p<0.01), history of allergic rhinitis (p<0.01; OR=3.80) and history of exercise intolerance (EIB) (p<0.01; OR=4.89). Among the laboratory factors, high IgE was found positive for age (p=0.037; OR=2.70). The epidemiological factors that were associated with ...
10
artículo
Publicado 2021
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Objective: To determine the clinical, laboratory and epidemiological factors that motivate hospitalization for asthmatic crisis at Yanahuara Hospital, Arequipa-Peru. Material and methods: Observational, prospective, case-control study in which risk factors for hospitalization were studied, comparing 84 hospitalized asthmatic children with 110 control children of the Asthma Program. Results: The highest frequency of hospitalization occurs in the range of 6-12 year-old (51.2 %) majority male (56 %). The associated clinical factors were the fact of presenting previous respiratory symptoms (p<0.01), history of allergic rhinitis (p<0.01; OR=3.80) and history of exercise intolerance (EIB) (p<0.01; OR=4.89). Among the laboratory factors, high IgE was found positive for age (p=0.037; OR=2.70). The epidemiological factors that were associated with ...
11
artículo
Publicado 2015
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Objectives: To identify the main maternal and perinatal complications in primiparous adolescents, when compared with a control group. Design: Observational, analytical, case-control. Location: Obstetrics and Gynecology Service, Hospital Nacional Sergio E. Bernales, teaching hospital. Participants: primigravid Adolescents. Interventions: He divided the population {on two homogeneous groups of 162 participants each, randomly selected and distributed by age in case group (10-19 years old) and control (20-29 years). Main outcome measures: Complications in pregnancy. Results: The mean age of the adolescents was 17.5 years, 61.2% had not completed secondary school, only 8.6% were students, 83% housewife. 71% of couples of teenagers teen was of age. The teens had less prenatal care than adults, 83% versus 89%, although with p> 0.05. The most common complication was urinary teen infection (p = 0...
12
artículo
Publicado 2015
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Objectives: To identify the main maternal and perinatal complications in primiparous adolescents, when compared with a control group. Design: Observational, analytical, case-control. Location: Obstetrics and Gynecology Service, Hospital Nacional Sergio E. Bernales, teaching hospital. Participants: primigravid Adolescents. Interventions: He divided the population {on two homogeneous groups of 162 participants each, randomly selected and distributed by age in case group (10-19 years old) and control (20-29 years). Main outcome measures: Complications in pregnancy. Results: The mean age of the adolescents was 17.5 years, 61.2% had not completed secondary school, only 8.6% were students, 83% housewife. 71% of couples of teenagers teen was of age. The teens had less prenatal care than adults, 83% versus 89%, although with p> 0.05. The most common complication was urinary teen infection (p ...
13
artículo
Publicado 2025
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In this paper, the author conducts a critical analysis of the practice adopted by the Commercial Chambers of Lima, which have been requiring arbitral awards to contain reasoning comparable to that of judicial decisions, relying on an extensive and debatable interpretation of Article 61.1.b of the Arbitration Law, despite the fact that both jurisdictions respond to inherently different natures.To this end, the author conducts a rigorous study of the doctrinal sources, the main national and foreign scholarly contributions, as well as the case law of the Commercial Chambers and the Constitutional Court, together with the applicable legislative framework. In particular, the study addresses the absence of an express ground for annulment of arbitral awards based on defects in reasoning, and advances an interpretative alternative to address this issue without resorting to questionable normative...
14
artículo
Publicado 2021
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Objective. To establish the association between insulin resistance and thyroid nodules in euthyroid women from Metropolitan Lima. Methods. Study in euthyroid women, 20 to 70 years of age: 32 cases (with thyroid nodules) and 32 controls (without thyroid nodules), by ultrasound of the thyroid, negative anti-thyroid antibodies, and adequate urinary iodine excretion (EUI), matched by age and BMI, treated in the Almenara-EsSalud care network. Using a clinical record, age and anthropometric parameters were recorded. Was measured: glucose, basal insulin (IB), and insulin resistance (IR) using the homeostatic model (HOMAIR≥2.97). EUI was detected by spectrophotometer at 420 nm, it was considered adequate between 100-300 ug/L. For the statistical analysis, the student’s t-test, Chi-square test, Fisher’s exact test, and Odds Ratio adjusted for age and abdominal obesity were used, considering...
15
artículo
Publicado 1988
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La religión católica ocupó un papel sumamente importante en la vida colonial. Todavía podemos encontrar vestigios de su importancia en las numerosas obras arquitectónicas y en el arte religioso, tanto en las aldeas pequeñas de América Latina como en sus ciudades grandes. Pero la religión ha dejado también otra marca, no menos material que la de los edificios: la iglesia católica y sus ministros que formaron una fuerza parta la pacificación, la modelización y el control de los naturales de América. No es exagerado decir que para la mayoría de los indígenas del nuevo Mundo, la religión impuesta por os conquistadores les resultó a la vez una entrada en la cultura europea y un mecanismo para sí conquista y dominación.
16
artículo
Publicado 2024
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Peru is a country that stands out for its important mining sector; therefore, the following study analyzes the relationship between internal control and business management within a mining company in the country. The methodology considers the basic type, descriptive-correlational level, and cross-sectional design, the universe being 379 workers of the mining company analyzed and the sample is made up of 178 workers. The research instruments used to obtain data and measure research variables are questionnaires and content analysis. The results revealed a significant relationship between internal control and corporate governance. Therefore, it can be concluded that the company lacks strength with regards to internal control culture. It is therefore recommended that training and awareness programs be implemented to strengthen internal control culture, so that employees may understand the im...
17
artículo
Publicado 2015
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Hematogenous tuberculosis occurs at higher rates in pregnant than in non-pregnant women; 10% of TB cases in the first and 5% by the latter. This study was conducted in two groups of patients 150 and 200 respectively, under similar conditions for both. Have controlled 15 patients with bloodborne forms of pulmonary tuberculosis, in a systematic and ongoing, during and after grávidopuerperal state for a period of at least four years in total, with a treatment that I implied: permanent hospitalization and hygienic-dietary regimen -medicamentoso right. It has been observed in these patients obstetric pathology similar to that of very advanced tuberculosis not hematógenas: premature termination of pregnancy, anemia true; hipodinomias in labor; subinvolution uterine postpartum; etc., at higher percentages than usual. But they have not noticed genital bleeding in any case, made striking by the...
18
artículo
Publicado 2015
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Hematogenous tuberculosis occurs at higher rates in pregnant than in non-pregnant women; 10% of TB cases in the first and 5% by the latter. This study was conducted in two groups of patients 150 and 200 respectively, under similar conditions for both. Have controlled 15 patients with bloodborne forms of pulmonary tuberculosis, in a systematic and ongoing, during and after grávidopuerperal state for a period of at least four years in total, with a treatment that I implied: permanent hospitalization and hygienic-dietary regimen -medicamentoso right. It has been observed in these patients obstetric pathology similar to that of very advanced tuberculosis not hematógenas: premature termination of pregnancy, anemia true; hipodinomias in labor; subinvolution uterine postpartum; etc., at higher percentages than usual. But they have not noticed genital bleeding in any case, made striking by the...
19
artículo
Publicado 2008
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The present research work evaluated the results of 390 serum samples collected to birds reared in commercial farms (broilers, egg-laying hens, and breeders) and 343 serum samples collected to birds reared in non-technical farms (backyard and fighting birds) that were analyzed by the hemoagglutination inhibition (HI) test for the Newcastle disease (ND). Samples were collected by the SENASA (national authority for animal health) as part of a national serological survey in the second semester of year 2001. An interpretation table for the results of the HI test was designed by a team of experts taking into consideration the number and type of vaccines against ND used. The prevalence rate of birds with antibody titers compatible to a Newcastle virus challenge was 1.8 ± 1.3% in birds from commercial farms and 9.9 ± 3.2% in birds from non-technical farms. The logistic regression analysis show...
20
artículo
Publicado 2022
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Objective: To assess the relationship between metabolic control and peripheral arterial disease (PAD) in patients with type 2 diabetes mellitus (DM2) in Maria Auxiliadora Hospital (MAH). Material and methods: This is a sex-matched case-control study with a secondary analysis based on data from the endocrinology service of MAH, Lima, Peru. Cases with PAD were defined as those with <0.9 ankle-to-arm index (ATAI). Controls were those subjects with ATAI between 0.9 and 1.3, under a 4:1 relationship with respect to cases. Poor metabolic control was defined as follows: glycated hemoglobin ≥7%, systolic blood pressure ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, HDL cholesterol <40 mg/dL (males) or >50 mg/dL (females), LDL cholesterol ≥100 mg/dL and triglycerides ≥150 mg/dL. Odds ratio values for poor metabolic control were calculated, both crude and adjusted, according to...
