Møller P, Heiberg A
Clin Genet. 1980 Dec;18(6):450-3. doi: 10.1111/j.1399-0004.1980.tb01792.x.
Routine electrocardiographic tracings (ECGs) were obtained from 491 male and 236 female Norwegians. The atrioventricular conduction time (P-R interval) was read independently on coded ECGs by two physicians. The frequency distributions are presented: mean +/- 2 SD was 0.16 +/- 0.04 s and 0.15 +/- 0.04 s for males and females, respectively. Intra-individual repeatability over 1 year was high, and the measurement error was small. Within each sex, body size, age, heart rate and non-cardiac disease manifestations had little influence on the P-R interval. The P-R interval may be reliably determined in routine ECG tracings by trained observers.
对491名挪威男性和236名挪威女性进行了常规心电图描记。由两名医生独立读取编码心电图上的房室传导时间（P-R间期）。给出了频率分布：男性和女性的平均值±2标准差分别为0.16±0.04秒和0.15±0.04秒。1年内个体内部的重复性很高，测量误差很小。在每种性别中，体型、年龄、心率和非心脏疾病表现对P-R间期影响很小。经过训练的观察者可在常规心电图描记中可靠地测定P-R间期。
