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研究对象为正常组89名(20～60岁)。高血压组60例(62±9岁)。由PDE二尖瓣血流图测定舒张时间间期DTI:充盈前期QD,早期加速时间DE,早期充盈时间DF,总充盈时间DC,房缩充盈时间GC,房缩加速时间GA,等容舒张时间。结果:两组心率无明显差别。采用协方差分析消除年龄影响后仍表明,QD、DE、DF、GC、GA、DE/DC、DF/DC、GC/DC在两组差别显著(p<0.01)。根据逐步回归及协方差选
Subjects for the normal group of 89 (20 to 60 years old). Hypertension group 60 cases (62 ± 9 years). From the PDE mitral flow diagram to determine the diastolic time period DTI: early filling QD, early acceleration time DE, early filling time DF, total filling time DC, atrial filling filling time GC, contracting speeding time GA, isovolumic relaxation time . Results: There was no significant difference between the two groups in heart rate. Analysis of covariance to eliminate the effect of age still showed that QD, DE, DF, GC, GA, DE / DC, DF / DC and GC / DC were significantly different between the two groups (p <0.01). Based on stepwise regression and covariance selection