Seo Su Ra, Kim Su Young, Lee Sang-Yi, Yoon Tae-Ho, Park Hyung-Geun, Lee Seung Eun, Kim Chul-Woung
Graduate School of Public Health, Seoul National University, Seoul, Korea. ; Health Insurance Policy Research Institute, National Health Insurance Service, Seoul, Korea.
Department of Preventive Medicine, Jeju National University School of Medicine, Jeju, Korea.
J Prev Med Public Health. 2014 Mar;47(2):104-12. doi: 10.3961/jpmph.2014.47.2.104. Epub 2014 Mar 31.
To date, studies have not comprehensively demonstrated the relationship between stroke incidence and socioeconomic status. This study investigated stroke incidence by household income level in conjunction with age, sex, and stroke subtype in Korea.
Contributions by the head of household were used as the basis for income levels. Household income levels for 21 766 036 people were classified into 6 groups. The stroke incidences were calculated by household income level, both overall within income categories and further by age group, sex, and stroke subtype. To present the inequalities among the six ranked groups in a single value, the slope index of inequality and relative index of inequality were calculated.
In 2005, 57 690 people were first-time stroke patients. The incidences of total stroke for males and females increased as the income level decreased. The incidences of stroke increased as the income level decreased in those 74 years old and under, whereas there was no difference by income levels in those 75 and over. Intracerebral hemorrhage for the males represented the highest inequality among stroke subtypes. Incidences of subarachnoid hemorrhage did not differ by income levels.
The incidence of stroke increases as the income level decreases, but it differs according to sex, age, and stroke subtype. The difference in the relative incidence is large for male intracerebral hemorrhage, whereas the difference in the absolute incidence is large for male ischemic stroke.
迄今为止，研究尚未全面证实中风发病率与社会经济地位之间的关系。本研究结合年龄、性别和中风亚型，按家庭收入水平调查了韩国的中风发病率。
以户主的贡献作为收入水平的依据。将21766036人的家庭收入水平分为6组。按家庭收入水平计算中风发病率，包括各收入类别总体情况以及进一步按年龄组、性别和中风亚型进行计算。为了用单一数值呈现六个排名组之间的不平等情况，计算了不平等斜率指数和不平等相对指数。
2005年，57690人首次患中风。男性和女性的总中风发病率均随收入水平降低而上升。74岁及以下人群中，中风发病率随收入水平降低而上升，而75岁及以上人群中，不同收入水平之间无差异。男性脑出血在中风亚型中不平等程度最高。蛛网膜下腔出血的发病率在不同收入水平之间无差异。
中风发病率随收入水平降低而上升，但因性别、年龄和中风亚型而异。男性脑出血相对发病率差异大，而男性缺血性中风绝对发病率差异大。
