a study of 379 males selected at random from a population of 40- to 59-years-old male residents of the lenin district in nalchik and 320 rural kabardino-balkarian male residents of the same age demonstrated that the prevalence of coronary heart disease ( chd ) among 40- to 59-years-old males in nalchik ( 10.0 % ) as determined by epidemiologic ecg assessment criteria was similar to that of moscow ( 9.6 % ) and significantly higher than that of rural kabardino-balkaria ( 6.2 % , p less than 0.01 ) .
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