Juuti M, Heinonen O P
Acta Med Scand. 1979;206(5):397-403. doi: 10.1111/j.0954-6820.1979.tb13534.x.
The study population consists of 2304 urolithiasis patients discharged from all hospitals in 21 central hospital districts in 1970. The incidence rate was 50 per 100 000 inhabitants per year, 74 for men and 27 for women. The age distribution resembles the Gaussian curve, with a peak between 45 and 49 years for men and between 50 and 54 years for women. The male/female ratio was 2.7 in the entire material, about 1 in the age group 0--24 years, about 3 in the age group 25--74 years and about 1.5 in patients 75 years or older. The standardized incidence was highest in Southeastern Finland and in the archipelago of Aland, and lowest in the coastal area of Southwestern Finland. In the area with high incidence, the age distribution of urolithiasis patients differed from that in the rest of the country: in the age groups over 40 the incidence of urolithiasis did not appear to decrease. This difference was attributed to some lifelong environmental exposure. The standardized incidence of urolithiasis leading to hospitalization was higher among urban than rural residents. Seasonal variation in the hospital admissions for urolithiasis was not evident, temporal patterns of admissions were, however, dissimilar in urban and rural areas, and might reflect differences in the physical activities of urban and rural populations.
研究人群包括1970年从21个中心医院区的所有医院出院的2304名尿石症患者。发病率为每年每10万居民50例，男性为74例，女性为27例。年龄分布类似于高斯曲线，男性在45至49岁之间出现峰值，女性在50至54岁之间出现峰值。在整个样本中，男女比例为2.7，在0至24岁年龄组中约为1，在25至74岁年龄组中约为3，在75岁及以上患者中约为1.5。标准化发病率在芬兰东南部和奥兰群岛最高，在芬兰西南部沿海地区最低。在高发病率地区，尿石症患者的年龄分布与该国其他地区不同：在40岁以上年龄组中，尿石症发病率似乎没有下降。这种差异归因于某些终身环境暴露。导致住院的尿石症标准化发病率在城市居民中高于农村居民。尿石症住院人数的季节性变化不明显，然而，城乡地区的住院时间模式不同，这可能反映了城乡人口身体活动的差异。
