ABC | Volume 113, Nº3, September 2019

Original Article Santos et al. Arterial hypertension in quilombola communities Arq Bras Cardiol. 2019; 113(3):383-390 Table 1 – Distribution of the demographic and socioeconomic variables in quilombola comunities in the State of Sergipe, Brazil, 2016-2017 Variables N % Age 18 to 49 245 63 50 to 79 133 34 > 80 12 3 Sex Female 282 72.31 Male 108 27.69 Skin Color/Race Black 150 38.46 Brown 209 53.59 White 31 7.95 Level of Education Illiterate/Incomplete Primary Education I 226 58 Complete Primary Education I/Incomplete Primary Education II 64 16.43 Complete Primary Education II/Incomplete High School 50 12.83 Complete High School/Incomplete Higher Education 45 11.54 Complete Higher Education 5 1.20 Economic classification B2 5 1.28 C1 18 4.62 C2 69 17.69 D-E 289 76.41 The estimate of the effect size was presented in odds ratio with 95% confidence interval. The Hosmer-Lemeshow test and C-statistics (area under the receiver operating characteristic curve, or ROC curve) were used to assess the potential calibration and discrimination of the model, respectively. A value of two-sided p < 0.05 was considered statistically significant and the Stata ® version 15.1 software (Stata Corp, College Station, TX, EUA), was used for data analysis. Results A total of 408 volunteers participated in the research; out of these, 18 were excluded: four of them who reported being pregnant, and 14 because they had consumed alcohol. A total of 390 individuals were deemed eligible, 72.3%women and 27.7% men. There were no missing data. The age ranged from 18 to 101 years, with a mean equal to 44.7 ± 19 years. The skin color was self-reported, according to the criteria of the Brazilian Institute of Geography and Statistics (IBGE), which indicated that 50% of the individuals were brown-skinned. The most prevalent level of education was illiterate/incomplete primary education I (58%). In the economic field, classes D and E obtained greater representation (76.41%). Table 1 presents the frequency of the main sociodemographic characteristics of the quilombola communities studied. A prevalence of 26% (95% CI: 22-30) was observed for SAH; systolic arterial hypertension in 22% (95% CI: 18-26) and diastolic arterial hypertension in 16% (95% CI: 12-20) of the cases. A chi-square test was performed to compare the prevalence of SAH in the quilombola communities and in the general population of Sergipe (20.4%), 8 and the quilombola communities had a significantly higher prevalence (p=0.0071). The mean number of years with a previous SAH diagnosis was 9.59 (standard deviation = 8.66). The diagnosis of the disease had been made at a minimum age of 18 years and at a maximum age of 55 years. There was no significant sex-related differences between the subclassifications of blood pressure. In women the average value of systolic pressure was 125.35 mmHg (95% CI: 122.7- 127.9), whereas in men the average value was equal to 129.53 mmHg (95% CI: 125.3-133.7); p = 0.09. The average diastolic pressure value estimated for women was 78.88 mmHg (95% CI: 77.1-80.6); as for men, the average value was 78.57 mmHg (95% CI: 76.3-80.7); p = 0.83. Among the behavioral variables reported by the participants, the following percentages were obtained: smoking, 37.18%; having alcohol drinking habits, 60.77%; and being physically inactive, 44.10%. The participants responded that they consumedhighquantities of sodium chloride (salt) everyday (17.69%). In relation to the anthropometric parameters, about 60.01% of the population presented with overweight or classes I, II and III obesity, with a smaller number of normal weight individuals (37.17%) (Table 2). 385