ABC | Volume 114, Nº1, January 2019

Original Article Gomes et al. Characterization of dyslipidemias in the youth Arq Bras Cardiol. 2020; 114(1):47-56 Figure 1 – Corresponding area to the health districts in the map of the city of Campinas. Source: Campinas Health Department. 13 Table 2 – Demographic characteristics of all subjects and by sex and age Features Number of individuals Total frequencies total (%) Total 62,530 100 Sex F 34,932 56 M 27,598 44 Age Infants 660 1 F 399 0.6 M 261 0.4 Children 25,501 41 F 13,219 21 M 12,282 20 Adolescents 36,369 58 F 21,314 34 M 15,055 24 N: number; F: female; M: male. test results, of individuals evaluated and their percentage frequencies: East: 41,075 and 8,215 (13%); Northwest: 61,900 and 12,380 (20%); North: 52,975 and 10,595 (17%); Southwest: 79,305 and 15,861 (25%) and South: 77,395 and 15,479 (25%). Half of the tests came from the southwest and south regions. Table 2 summarizes the demographic characteristics of subjects, including the origin of clinical laboratory calls. The results of the descriptive and comparative analyses are shown in Tables 3 and 4. Table 3 shows that in all the age groups, TC, TG, LDL-C and NHDL-C were higher for infants. TG was similar in children and adolescents, and the median of HDL-C levels was higher in children than in the others. In relation to sex, the female group had higher values. In the comparison by age group, the results also showed significant differences for the parameters evaluated in both sexes. Table 4 clearly shows that there were higher results for TC in the eastern region than in the other regions. LDL-C levels were higher in the eastern region than in the northwest, southwest and south; NHDL-C values were also higher in this region than in the south and lower in the northwest region than in the others. In the eastern, north, and southwestern regions, triglyceridemia was higher than in the northwestern region, and in the eastern and southwestern regions, it was higher than in the south. HDL-C in the southwestern region was lower than in the other ones and higher in the eastern region than in the south. Table 5 shows the frequencies of dyslipidemia and their ratios by sex. The most frequent dyslipidemias were isolated increases in TG and reduction of HDL-C. By sex, dyslipidemia frequencies were higher in females. Figure 2 shows the frequencies of dyslipidemia by age. Infants presented higher frequencies of increased TG and NHDL-C and isolated dyslipidemias, as well as a higher prevalence of the combination of increased LDL-C and TG. As for children, higher levels of TC and LDL-C were observed, as well as the combination of increased TG and reduced HDL-C; there was also a higher frequency of at least one type of mixed dyslipidemia. On the other hand, adolescents showed a higher number of reduced HDL-C results. Figure 3 shows the frequencies of dyslipidemia by regions of Campinas. Dyslipidemias were more frequent in the southwestern region of Campinas than in the other regions. 49