Ruffolo S, Florio F, Piro E
Arch Sci Med (Torino). 1978 Apr-Jun;135(2):269-76.
The incidence of admissions for coronary disease in relation to age, sex, diet, occupation and place of origin was examined for five 3-yr periods ('50-'52, '56-'58, '63-'65, '66-'68, and '69-'71). There was a marked increase in admissions and a greater incidence among middle-aged subjects and males. The percent frequency differences between urban and montane districts noted in the fifties were less apparent later in the last three-year period.
研究了五个3年时间段（1950 - 1952年、1956 - 1958年、1963 - 1965年、1966 - 1968年以及1969 - 1971年）内冠心病入院率与年龄、性别、饮食、职业及出生地的关系。入院率显著上升，中年人和男性的发病率更高。五十年代所记录的城市和山区之间的百分比频率差异在最后一个三年期后期不太明显。
