Peterson D R, Chinn N M
Pediatrics. 1977 Jul;60(1):75-9.
Data from six geographically dispersed metropolitan areas in the United States in which special sudden infant death syndrome (SIDS) surveillance programs for detection and autopsy diagnosis existed during the period 1965 through 1974 reveal considerable diversity in overall ten-year incidence rates as well as in annual rate distribution patterns. A downward trend in SIDS incidence occurred in some areas but not in others. Non-SIDS postneonatal death rates, which were used for comparison, also decreased in some areas. Rate trends for whites and nonwhites were not consistent. During the same period, the fertility rate in the United States decreased by about a third for both whites and nonwhites. To explain the observed trends we postulate that concomitants of the fertility rate decline may have reduced the number of "high mortality risk babies" to a variable degree in different places and at different times.
来自美国六个地理上分散的大都市地区的数据显示，在1965年至1974年期间，这些地区设有专门的婴儿猝死综合征（SIDS）监测项目以进行检测和尸检诊断，其十年总体发病率以及年发病率分布模式存在相当大的差异。SIDS发病率在一些地区呈下降趋势，但在其他地区并非如此。用于比较的非SIDS新生儿后期死亡率在一些地区也有所下降。白人和非白人的发病率趋势并不一致。在同一时期，美国白人和非白人的生育率均下降了约三分之一。为了解释观察到的趋势，我们推测生育率下降的相关因素可能在不同地点和不同时间以不同程度减少了“高死亡风险婴儿”的数量。
