Since the permanent census act was passed in 1902, the Bureau of the Census has made annual collections of mortality statistics from a steadily increasing area, which now contains 82.2 per cent, of the population of the United States. Until recently, however, few states maintained reliable birth registration systems. The first annual birth report was for 1915, and included ten states and the District of Columbia. The birth registration area now comprises twenty-seven states, which contain 65.3 per cent, of the population of the United States. The seventh annual report1 on birth statistics published by the Bureau of the Census has just been received. It shows a birth rate of 24.3 per thousand population for 1921, as against a birth rate in 1920 of 23.7. There is a marked excess of births over deaths in every state in the registration area, as well as for nearly every city. Wherever
BIRTH STATISTICS FOR 1921. JAMA. 1923;81(12):1023. doi:10.1001/jama.1923.02650120055014
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