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心血管风险分层工具之间的一致性程度。

Degree of Agreement between Cardiovascular Risk Stratification Tools.

作者信息

Garcia Guilherme Thomé, Stamm Ana Maria Nunes de Faria, Rosa Ariel Córdova, Marasciulo Antônio Carlos, Marasciulo Rodrigo Conill, Battistella Cristian, Remor Alexandre Augusto de Costa

机构信息

Universidade Federal de Santa Catarina (UFSC), Florianópolis, SC - Brazil.

Hospital Universitário Prof. Dr. Polydoro Ernani São Thiago, Florianópolis, SC - Brazil.

出版信息

Arq Bras Cardiol. 2017 May;108(5):427-435. doi: 10.5935/abc.20170057.

Abstract

BACKGROUND

: Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in Brazil, and primary prevention care may be guided by risk stratification tools. The Framingham (FRS) and QRISK-2 (QRS) risk scores estimate 10-year overall cardiovascular risk in asymptomatic individuals, but the instrument of choice may lead to different therapeutic strategies.

OBJECTIVE

: To evaluate the degree of agreement between FRS and QRS in 10-year overall cardiovascular risk stratification in disease-free individuals.

METHODS

: Cross-sectional, observational, descriptive and analytical study in a convenience sample of 74 individuals attending the outpatient care service of a university hospital in Brazil between January 2014 and January 2015. After application of FRS and QRS, patients were classified in low/moderate risk (< 20%) or high risk (≥ 20%).

RESULTS

: The proportion of individuals classified as at high risk was higher in FRS than in QRS (33.7% vs 21.6%). A synergic effect of male gender with systemic arterial hypertension was observed in both tools, and with for geriatric age group in QRS (p < 0.05) in high-risk stratum. The Kappa index was 0.519 (95%CI = 0.386-0.652; p < 0.001) between both instruments.

CONCLUSION

: There was a moderate agreement between FRS and QRS in estimating 10-year overall cardiovascular risk. The risk scores used in this study can identify synergism between variables, and their behavior is influenced by the population in which it was derived. It is important to recognize the need for calibrating risk scores for the Brazilian population.

FUNDAMENTO

: A doença cardiovascular (DCV) é a principal causa de morbimortalidade no Brasil, e a prevenção primária pode ser direcionada com ferramentas que estratificam o risco. Os escores de Framingham (ERF) e QRISK-2 (ERQ) estimam o risco cardiovascular (RCV) global em 10 anos em indivíduos assintomáticos, mas a escolha do instrumento pode implicar em terapêuticas distintas.

OBJETIVO

: Observar o grau de concordância entre o ERF e o ERQ, na estratificação do risco cardiovascular global em 10 anos, nos indivíduos livres da doença.

MÉTODOS:: Estudo transversal, observacional, descritivo e analítico, com uma amostra de conveniência de 74 indivíduos, atendidos em um ambulatório de ensino de um hospital universitário brasileiro, no sul do país, de janeiro de 2014 a janeiro de 2015. O ERF e o ERQ foram aplicados nos pacientes, que foram classificados em baixo/moderado (< 20%) ou alto risco (≥ 20%).

RESULTADOS

: A proporção de indivíduos classificados no estrato de alto risco foi superior no ERF que no ERQ (33,7% vs 21,6%), sendo identificado efeito sinérgico do gênero masculino com hipertensão arterial sistêmica nas duas ferramentas, e com faixa etária geriátrica no ERQ (p < 0,05) nesse estrato de risco. O índice de concordância Kappa entre os dois escores foi igual a 0,519 (IC95% = 0,386-0,652; p < 0,001).

CONCLUSÃO:: Houve concordância moderada entre o ERF e o ERQ, na estimativa de RCV global em 10 anos. Os escores utilizados podem identificar sinergismo entre as variáveis, e têm comportamento influenciado pela população na qual foram originados. É importante reconhecer a necessidade de escores calibrados para a população brasileira.

摘要

背景

心血管疾病(CVD)是巴西发病和死亡的主要原因,一级预防护理可通过风险分层工具来指导。弗雷明汉(FRS)和QRISK-2(QRS)风险评分可估算无症状个体的10年总体心血管风险,但所选工具可能会导致不同的治疗策略。

目的

评估FRS和QRS在无疾病个体的10年总体心血管风险分层中的一致性程度。

方法

对2014年1月至2015年1月在巴西一家大学医院门诊就诊的74名个体组成的便利样本进行横断面、观察性、描述性和分析性研究。应用FRS和QRS后,将患者分为低/中度风险(<20%)或高风险(≥20%)。

结果

FRS分类为高风险的个体比例高于QRS(33.7%对21.6%)。在两种工具中均观察到男性性别与系统性动脉高血压的协同作用,在QRS中高风险分层里老年年龄组也存在协同作用(p<0.05)。两种工具之间的Kappa指数为0.519(95%CI=0.386-0.652;p<0.001)。

结论

FRS和QRS在估算10年总体心血管风险方面存在中度一致性。本研究中使用的风险评分可识别变量之间的协同作用,其行为受推导所基于人群的影响。认识到为巴西人群校准风险评分的必要性很重要。

基础

心血管疾病(DCV)是巴西发病和死亡的主要原因,一级预防可通过对风险进行分层的工具来指导。弗雷明汉(ERF)和QRISK-2(ERQ)风险评分可估算无症状个体的10年心血管风险(RCV),但所选工具可能意味着不同的治疗方法。

目的

观察ERF和ERQ在无疾病个体的10年心血管总体风险分层中的一致程度。

方法

横断面、观察性、描述性和分析性研究,对巴西南部一家大学医院教学门诊的74名个体便利样本进行研究,时间为2014年1月至2015年1月。对患者应用ERF和ERQ,将其分为低/中度(<20%)或高风险(≥20%)。

结果

ERF中分类为高风险层的个体比例高于ERQ(33.7%对21.6%),在两种工具中均识别出男性性别与系统性动脉高血压的协同作用,在该风险分层中ERQ里老年年龄组也存在协同作用(p<0.05)。两个评分之间的一致性Kappa指数为0.519(95%CI=0.386-0.652;p<0.001)。

结论

ERF和ERQ在估算10年RCV总体方面存在中度一致性。所使用的评分可识别变量之间的协同作用,且其行为受产生它们的人群影响。认识到为巴西人群校准评分的必要性很重要。

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