[A cohort study on the difference of stroke incidence between urban and rural populations and related influential factors].
A longitudinal prospective study was carried out in a cohort of 1 809 persons aged 35 to 74 at entry, including 778 subjects from urban and 1 031 from rural areas. The average annual age-adjusted incidence of stroke was 95.7/10(4) in urban group during a 15-year-period from 1979 to 1994, which was significantly lower than that in rural areas (183.1/10(4) during a 11-year-period from 1983 to 1994. According to the results through multivariate regression analysis and comparative study of risk factors between urban and rural group at baseline examination, it was suggested that in addition to age, factors as drinking habit, smoking, ECG abnormality and elevated systolic blood pressure (in female) were important parameters causing the difference of incidence between urban and rural groups. Other than those factors mentioned above, low level of serum cholesterol in rural population was also suspected as a possible factor positively influencing the development of stroke.
Du
F C
FC
Cardiovascular Disease Institute, Nanjing Medical University.
Wang
H Y
HY
Yao
C L
CL
D000328:Adult; D000368:Aged; D002561:Cerebrovascular Disorders / Q000453:epidemiology* / Q000209:etiology; D002681:China / Q000453:epidemiology; D015331:Cohort Studies; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications; D015994:Incidence; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012307:Risk Factors; D012423:Rural Health; D012907:Smoking; D014504:Urban Health