ABC | Volume 114, Nº5, May 2020

Original Article Lima Campos et al. Knowledge about the congenital heart disease Arq Bras Cardiol. 2020; 114(5):786-792 Table 2 – Prevalence for Incorrect/Doesn’t know knowledge of disease, crude and adjusted analysis on representative dependent variables in the study Variables Incorrect / Doesn’t Know Knowledge (n=187) Odds ratio C Adjusted Odds ratio D n % OR (IC95%) p adj OR (IC95%) p* Age 0.418 0.068 8 36 19.3 2.71(1.18 – 6.21) 2.84 (1.44-8.56) 9 33 17.6 1.10 (0.54 –2.27) 1.22 (1.09-2.88) 10 32 17.1 0.74 (0.37 –1.48) 0.98 (0.55-1.66) 11 28 15.0 1.26 (0.59 –2.73) 1.17 (0.89-2.67) 12 28 15.0 1.11 (0.52 –2.37) 1.09 (0.66-1.99) 13 30 16.0 1.0 1.0 Level of schooling (year) 0.589 0.025 Preschool, 1 st , 2 nd , 3 rd 62 33.2 1.34 (0.48 – 3.77) 2.20 (1.81 – 5.86) 4 th , 5 th 73 39.0 0.78 (0.25 –1.82) 2.19 (1.60 – 6.21) 6 th 21 11.2 0.56 (0.18 –1.69) 1.69 (1.19 – 2.49) 7 th 19 10.2 0.38 (0.13 –1.14) 0.46 (0.14 – 1.55) 8 th 12 6.4 1.0 1.0 CHD classification 0.026 ML/ASI 44 23.5 1.0 1.0 0.019 AWI 89 47.6 0.77 (0.46 – 1.30) 0.63 (0.31- 1.27) CY 54 28.9 3.24 (1.56 – 6.75) 2.29 (1.76 - 6.71) Children who were hospitalized 0.182 0.287 Yes 115 61.5 1.15 (0.92-1.49) 1.09 (0.64-1.36) No 72 38.5 1.0 1.0 Children treated with surgical procedure 0.013 0.355 Yes 86 46.0 1.0 1.0 No 101 54.0 1.77 (1.13-2.78) 1.22 (0.85 – 1.87) Practiced physical activity 0.009 0.011 Yes 162 86.6 1.0 1.0 No 26 13.9 2.20 (1.13-4.29) 1.88 (1.09 – 3.45) C: crude odds ratio to estimate the risk of Incorrect/Doesn’t know knowledge in relation to the grouped categories Incorrect/Doesn’t know knowledge. D: Adjusted Odds ratio to estimate the risk of Incorrect/Doesn’t know knowledge, in relation to the grouped categories Incorrect/Don’t know knowledge adjusted for the variables present in the model. Classification of CHD: Minimal lesions (ML); acyanotic without implications (ASI); acyanotic with implications (AWI) (surgery/hemodynamics); Cyanotic (CY). * Pearson’s Chi-square test Lower levels of physical exercise have been associated with an increased incidence of disabilities and diseases, including hypertension, obesity and diabetes. In contrast, high levels of physical exercise are associated with greater musculoskeletal fitness and less risk of physical disability and development of diseases. 21 However, in cases of CHD, it is important to consider that there is a lot of variability regarding the level of PA allowed according to the disease, the type of correction and the presence of sequelae. The interaction between CHD and acquired cardiovascular risk factors can have summing effects for the future. There are indications that acquired comorbidities are likely to be harmful. It is important to emphasize that the modification of knowledge, behavior and lifestyle, as well as the correct treatment, should start early with a focus on continuous cardiovascular care. 22 The study had the possible memory bias as a limitation, which may have affected the accuracy of the answers. Conclusion Cyanotic children and adolescents, with a lower level of education and who did not practice physical activity, had little knowledge about their disease. It is necessary to develop educational intervention strategies to increase knowledge 790