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QJM ; 111(6): 389-397, 2018 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-29554373

RESUMO

BACKGROUND: Although asymptomatic microscopic hematuria (MH) is a common finding in clinical practice, its long-term outcome remains unknown. AIM: This study evaluated the clinical implication of MH in the general population using a large-scale long-term longitudinal cohort database. METHODS: This study included 8719 participants from the Korean Genome and Epidemiology Study between 2001 and 2014. MH was defined as ≥5 red blood cells per high-power field in random urinalysis without evidence of pyuria. The primary study outcome measure was incident chronic kidney disease (CKD), defined as estimated glomerular filtration rate <60 ml min-1⋅1.73⋅m-2. RESULTS: During a median follow-up of 11.7 years, CKD occurred in 677 (7.8%) subjects. In Cox regression after adjustment for multiple confounders, subjects with MH had a significantly higher risk of incident CKD than those without [hazard ratio (HR) 1.45, 95% confidence interval (CI) 1.12-1.87; P = 0.005]. Isolated MH without proteinuria was also a risk factor of incident CKD (HR 1.37, 95% CI 1.04-1.79; P = 0.023) and the risk was further increased in MH with concomitant proteinuria (HR 5.41, 95% CI 2.54-11.49; P < 0.001). In propensity score matching analysis after excluding subjects with proteinuria, multi-variable stratified Cox regression analysis revealed that subjects with isolated MH had a significantly higher risk of incident CKD than those without (HR 1.83, 95% CI 1.14-2.94; P = 0.012). CONCLUSION: The presence of MH is associated with an increased risk of incident CKD in the general population. Therefore, attentive follow-up is warranted in persons with MH for early detection of CKD.


Assuntos
Hematúria/complicações , Hematúria/epidemiologia , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/epidemiologia , Adulto , Idoso , Progressão da Doença , Feminino , Taxa de Filtração Glomerular , Humanos , Incidência , Coreia (Geográfico)/epidemiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Pontuação de Propensão , Modelos de Riscos Proporcionais , Estudos Prospectivos , Proteinúria/complicações , Fatores de Risco , Urinálise
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