<b>Introduction: </b>Colorectal cancer (CRC) represents the third most diagnosed form of cancer around the world, accounting for 11% of all cancer diagnoses. It has been seen that obesity is closely linked to this disease.<br /> <b>Materials and methods: </b>This study is a non-paired case-control study. To measure obesity, the body mass index (BMI), new body mass index (NBMI), and the triponderal index (TPI) were used. Logistic regression was used to obtain the adjusted odds ratio (aOR) by age and sex, confidence interval (95%CI).<br /> <b>Results: </b>The sample was 246 patients. The prevalence of obesity according to BMI was 12.20%. The multivariable analysis found statistically significant association between CRC and obesity according to BMI (aOR: 3.23; 95% CI 1.26-8.30) compared to normal weight; NBMI tertile 3 (aOR: 4.02; 95% CI 1.95-8.30), compared to tertile 1; and TPI tertile 3 (aOR: 4.55; 95% CI 2.21-9.35) versus tertile 1.<br /> <b>Conclusions: </b>Obesity, is a risk factor for CRC. Future studies might consider useful different ways to measure obesity to define population strata with a higher-risk of CRC.

Introduction: Self-medication is a common practice to alleviate symptoms of various diseases, in the child population such as pharyngitis and rhinopharyngitis that are common in health centers in Peru. Objective: To determine the factors associated with self-medication in children with upper respiratory tract diseases. Material and methods: Analytical cross-sectional observational study. The sample size was 206 parents who went with their children to the Emergency service. A questionnaire approved by Valenzuela M was used. and the SPSS program to find the frequency, the bivariate analysis and the multivariate analysis of Poisson logistic regression. Results: The prevalence of self-medication in children was 91,3%. Parents who only studied primary and secondary school were more likely to self-medicate their children PRa=1,22 (95% CI: 1,01-1,40). the first-born were protected from self-medication PRa=0,86 (95% CI: 0,76-0,97). Parents who were between 20 and 29 years of age obtained PRa=1,04 (95% CI: 0,96-1,13), children under 7 years old, PRa=0,99 (95% CI: 0,91-1,07) and parents of family that had 1 child PRa=1,04 (95% CI:0,90-1,20). Conclusions: The educational level and the order number of the child, such as being the first-born, had a significant association with self-medication in children.

RESUMENObjetivos: Determinar los factores asociados a complicaciones en la hernioplastía inguinal en un hospital de las fuerzas armadas del Perú, 2013-2017. Métodos: Estudio observacional, cuantitativo, retrospectivo, analítico tipo casos y control. Se contó con 52 casos y 104 controles, obtenidos bajo hoja de cálculo y escogidos por muestreo probabilístico simple. Se analizó las medidas de asociación a través del Odds Ratio (OR). Se utilizó un intervalo de confianza al 95% (IC 95%) y se aplicó el estadístico chi cuadrado con un nivel de significancia estadística menor a 0,05. Resultados: Se encontró que la complicación más frecuente fue el seroma. Con respecto al sexo, se observó un OR: 1,41; IC 95%: 0,655 -3,05; p 0.375, para la edad, se obtuvo un OR: 4,56; IC 95%: 2,24 -9,28; p 0.00. Para la obesidad, se evidenció un OR: 28,52; IC 95%: 10,9 -74,60; 0.00. En el diámetro del anillo herniario, se obtuvo OR: 1,83; IC 95%: 0,76 -4,39; p 0.17. Con respecto a la técnica quirúrgica, el análisis evidenció un OR: 2,52; IC 95%: 1,13 -5,58. Por último, con respecto al tiempo quirúrgico, se encontró un OR: 12,37; IC 95%: 5,23 -29,26; p 0.00. Conclusión: Se concluye que existen factores de riesgo asociados a complicaciones post hernioplastía inguinal como la edad mayor o igual a 65 años, obesidad, técnica quirúrgica tipo convencional y tiempo operatorio igual o mayor a 90 minutos. ABSTRACTObjective: To determine the factors associated with complications in inguinal hernioplasty in a hospital of the armed forces of Peru, 2013-2017. Methods: Observational, quantitative, retrospective, analytical type case and control study. There were 52 cases and 104 controls, obtained under the spreadsheet and chosen by simple probabilistic sampling. We analyzed the association measures through the Odds Ratio (OR). A 95% confidence interval (95% CI) was used and the chi-squared statistic was applied with a statistical significance level of less than 0.05. Results: It was found that seroma was the most frequent complication. With regard to sex, an OR was observed: 1.41; 95% CI: 0.655 -3.05; p 0.375, for age, an OR was obtained: 4.56; 95% CI: 2.24 -9.28; p 0.00. For obesity, an OR was found: 28.52; 95% CI: 10.9-74.60; 0.00. In the diameter of the hernial ring, OR was obtained: 1.83; 95% CI: 0.76 -4.39; p 0.17. With respect to the surgical technique, the analysis showed an OR: 2.52; 95% CI: 1.13 -5.58. Finally, with respect to surgical time, an OR was found: 12.37; 95% CI: 5.23-29.26; p 0.00. Conclusion: It is concluded that there are risk factors associated with complications after inguinal hernioplasty such as age greater than or equal to 65 years, obesity, conventional type surgical technique and operative time equal to or greater than 90 minutes.Journal home page: http://revistas.urp.edu.pe/index.php/RFMH © Los autores. Este artículo es publicado por la Revista de la Facultad de Medicina Humana, Universidad Ricardo Palma. Este es un artículo de Open Access distribuido bajo los términos de la Licencia Creative Commons Atribución-NoComercial...