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Incidence and survival of lacunar infarction in a southern Chinese population: A 7-year prospective study.
Brain Injury 2015
OBJECTIVE: Little attention has been paid to the epidemiological characteristics of lacunar infarction (LAC) in China before. This study aimed to examine the incidence and survival of LAC in a southern Chinese population.
METHODS: From 2004-2010 in Changsha, two communities with a registered population of ∼100 000 were selected and data from first-ever ischaemic stroke (IS) cases were prospectively collected. Then the epidemiological characteristics of LAC and non-LAC were evaluated.
RESULTS: During the study period, the age-standardized incidence increased at an annual rate of 0.7% (p < 0.001) for LAC and 2.0% (p < 0.001) for non-LAC. The mean annual age-standardized incidence of LAC and non-LAC was 28.2/100 000 and 45.0/100 000, respectively. Compared with non-LAC patients, the prevalence of hypertension, diabetes and hyperlipidemia was significantly higher in patients with LAC (p < 0.05). Although the 30-day fatality rate was significantly lower in patients with LAC than non-LAC (0.5% vs. 14.9%, p < 0.001), there was no significant difference in survival between the two groups (96.7% vs. 95.2%, p = 0.203) after excluding the patients who died within 1 year of stroke onset.
CONCLUSION: LAC is a common stroke sub-type in southern China and the long-term prognosis is not benign.
METHODS: From 2004-2010 in Changsha, two communities with a registered population of ∼100 000 were selected and data from first-ever ischaemic stroke (IS) cases were prospectively collected. Then the epidemiological characteristics of LAC and non-LAC were evaluated.
RESULTS: During the study period, the age-standardized incidence increased at an annual rate of 0.7% (p < 0.001) for LAC and 2.0% (p < 0.001) for non-LAC. The mean annual age-standardized incidence of LAC and non-LAC was 28.2/100 000 and 45.0/100 000, respectively. Compared with non-LAC patients, the prevalence of hypertension, diabetes and hyperlipidemia was significantly higher in patients with LAC (p < 0.05). Although the 30-day fatality rate was significantly lower in patients with LAC than non-LAC (0.5% vs. 14.9%, p < 0.001), there was no significant difference in survival between the two groups (96.7% vs. 95.2%, p = 0.203) after excluding the patients who died within 1 year of stroke onset.
CONCLUSION: LAC is a common stroke sub-type in southern China and the long-term prognosis is not benign.
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