Macroalbuminuria detected by urine dipstick was associated with a 3.13-fold increased risk of cardiovascular or renal morbidity and mortality compared to normoalbuminuria over a 14-year follow-up.
Cohort (n=635)
No
Does albuminuria detected by semi-quantitative urine dipstick predict cardiovascular and renal outcomes in rural Thai adults?
Macroalbuminuria detected by simple, inexpensive semi-quantitative urine dipstick independently predicts long-term cardiovascular and renal risk in a rural Thai population.
Effect estimate: adjusted HR 3.13 (95% CI 1.40-6.96)
Absolute Event Rate: 39.3% vs 13.1%
p-value: p=0.005
BACKGROUND: Albuminuria is an established risk marker for both cardiovascular and renal outcomes. In this study, we expected to use portable and inexpensive test strips to detect urine albumin level for risk stratification in cardiovascular and renal outcomes among rural Thai community. OBJECTIVE: To evaluate the relationship between urine albumin dipstick and cardiovascular and renal complications in rural Thai population. METHODS: We conducted a retrospective study in 635 rural Thai adults who tested urine albuminuria by using commercial urine albumin dipstick and the Micral-albumin test II strips at baseline. The subjects were divided into normoalbuminuria (albumin 200 mg/L). We collected data on the incidences of primary composite outcomes including cardiovascular or renal morbidity and mortality. Incident density and cox regression were analyzed to evaluate the association between albuminuria status and primary composite outcome. RESULTS: During an average 14-year follow-up, 102 primary composite events occurred including 59 (13.1%), 32 (20.6%) and 11 (39.3%) among 452, 155, and 28 subjects with normoalbuminuria, microalbuminuria, and macroalbuminuria, respectively. Incident densities of primary composite outcome were elevated continually according to the degree of albuminuria (9.36, 17.11 and 38.12 per 1000 person-years). Compared with the subjects without albuminuria, subjects with microalbuminuria and macroalbuminuria at baseline had higher risk for primary composite outcome in univariate model. After multivariate analysis was performed, the effect of macroalbuminuria was only persisted with 3.13-fold risk (adjusted HR 3.13; 95% CI 1.40-6.96, P= 0.005). CONCLUSION: Albuminuria from semi-quantitative methods is an important factor predicting cardiovascular and renal risk among subjects in Thai rural population. Our findings support to also incorporating urine albumin dipstick into assessments of cardiovascular risk in the general population.
Aiumtrakul et al. (Fri,) conducted a cohort in General rural population (n=635). Macroalbuminuria (urine dipstick) vs. Normoalbuminuria was evaluated on Primary composite outcome of cardiovascular or renal morbidity and mortality (adjusted HR 3.13, 95% CI 1.40-6.96, p=0.005). Macroalbuminuria detected by urine dipstick was associated with a 3.13-fold increased risk of cardiovascular or renal morbidity and mortality compared to normoalbuminuria over a 14-year follow-up.
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