Joyce T, Racine A D
National Bureau of Economic Research, New York, NY 10003.
Am J Public Health. 1993 Jan;83(1):109-11. doi: 10.2105/ajph.83.1.109.
Monthly time-series data on rates of low birthweight and very low birthweight in New York City from 1963 to 1990 indicate that the dramatic increase, particularly among Blacks beginning in 1984, appears to have peaked in 1988. Based on vital statistics records, the rate of low birthweight for Blacks fell from 13.1% in 1988 to 12.1% in 1990. The rate of low birthweight among Whites and Hispanics has fallen slightly since 1988.
1963年至1990年纽约市低出生体重和极低出生体重发生率的月度时间序列数据表明,这一显著增长,尤其是自1984年起在黑人中出现的增长,似乎在1988年达到峰值。根据人口动态统计记录,黑人的低出生体重发生率从1988年的13.1%降至1990年的12.1%。自1988年以来,白人和西班牙裔的低出生体重发生率略有下降。