Abstract
This study was carried out to obtain the basic data for epdemiological survey of hypertension in old population (60 years or more). From May, 1983 to April, 1984, 365 males and 335 females who inhabit in Ko-Chang Gun, Chonbuk Province were investigated for several factors as their socio-econmic status and laboratory examinations with blood pressure, and which factors were analysed by simple correlation and multiple regression analysis. The results are summarized as follows; 1) Sample size of this study is equivalent to 5.2%(male;6.7%, female;4.3%) of population in 60 years or more age group, and the mean age of samples is 70.6${\pm}$5.3 (yr.) in males and 71.4${\pm}$5.3 (yr.) in female (P>0.05). 2) Mean blood pressure of males are 135.9${\pm}$21.3mm Hg in systolic and 85.3${\pm}$13.4mm Hg in diastolic phase and in female, 131.0${\pm}$23.6 mm Hg and 84.1${\pm}$19.9 mm Hg (P < 0.01). Their prevalence rates of hypertension (${\geq}$ 140 mm Hg in systolic, ${\geq}$ 95 mm Hg in diastolic phases) are 33.7% in males, 40.6% in females (P < 0.01). 3) Serum cholesterol levels and other independent variables are revealed in normal ranges, and except to Vervaeck index (89.4${\pm}$5.6 in males, 87.5${\pm}$6.7 in females, p<0.01), other are not significant sexual differences (P>0.05). 4) In the simple correlation analysis, the main factors that affect to blood pressure are serum cholesterol levels (P < 0.05) and Vervaeck index (P < 0.01) in males, age (P <0.05) and Vervaeck index (P <0.01) in females. 5) In multiple regression analysis, prediction equations for blood pressure are calculated as follows; Ysm=-64.55+0.161(X1)+0.124(X2)-0.047(X3)+1.953(X4) Ydm=18.61-0.125(X1)+0.060(X2)+0.032(X3)+0.720(X4) Ysf=-0.22+0.536(X1)+0.134(X2)+0.068(X3+0.788(X4) Yaf=-14.46+0.685(X1)+0.033(X2)+0.176(X3)+0.362(X4) Ysm : Systolic blood pressure in male, Ydm : Diastolic blood pressure in male, Ysf : Systolic blood pressure in female, Ydf : Diastolic blood pressure in female. X1 : Age(year), X2 : Serum cholesterol level (mg%), X3 : Fastin blood sugar (mg% ), X4 : Vervaeck index.
고혈압에 대한 역학조사의 일환으로서 전라북도 고창군에 거주하는 60세이상의 노인 (남자;365명, 여자;335명)을 대상으호 제요인들을 조사분석한 결과 다음과 같이 요약할 수 있었다. 1) 본조사에 응한 대상의 수는 고창군내의 동일연령인구 13,471명에 대해 5.2% (남 ; 6.7%, 녀 ; 4.3%)에 해당되며, 이들의 평균연령은 남자 70.6${\pm}$5.3세, 여자 71.4${\pm}$5.3세였다 (P>0.05). 2) 종속변수로서의 혈압온 남자에서 135.9${\pm}$21.3/85.3${\pm}$13.4mm Hg 여자에서 131.0${\pm}$23.6/84.1${\pm}$19.9mm Hg로써 수축기혈압의 경우 남자에서 현저히 높았다 (P < 0.01). 3) 혈중 cholesterol 치를 비롯한 기타 독립변수들은 남녀 공히 정상범위를 보였으며, Vervaeck 지수 (남자;89.4${\pm}$5.6, 여자;87.5${\pm}$6.6, P(0.01)를 제외하고는 남녀간의 차를 발견할 수 없었다 (P>0.05). 4) 대상들의 고혈압유병률은 남자 33.7%, 여자 40.6%로 나타났다 (P > 0.01). 5) 제변수들과 혈압과의 상관분석결과에서 남자에서는 수축기 및 이완기혈압에 대해 혈중 cholesterol 치 (P < 0.05)와 Vervaeck 지수 (P < 0.005)가 매우 긴밀한 상관관계를 나타냈고, 여자의 경우 수축기혈압에 대해서는 연령(r= 0.145, P < 0.05)과 Vervaeck 지수 (r=0.214, P < 0.01)가, 이완기혈압에 대해서는 연령 (r=0.101), 혈당지 (r=0.102) Vervaeck 서수 (r=0.109)가 각각 유의한 상관성을 나타냈다 (P < 0.01). 6) 각 변수의 복합적인 영향을 분석키 위한 중회귀분석의 결과는 다음의 중회궈직선으로 요약된다. Ysm=-64.55+0.161(X1)+0.124(X2)-0.047(X3)+1.953(X4) Ydm=18.61-0.125(X1)+0.060(X2)+0.032(X3)+0.720(X4) Ysf=-0.522+0.536(X1)+0.134(X3)+0.068(X3)+0.788(X4) Ydf=-14.46+0.685(X1)+0.033(X2)+0.176(X3)+0.362(X4) Ysm : 남자 수축기혈압 Ydm: 남자 이완기혈압 Ysf: 여자 수축기혈압 Ydf : 여자 이완기혈압 X1 : 연령 X2 : 혈중 cholesterol 치 X3 : 혈당치 X4 : Vervaeck 지수.