Abstract
The percent of married women in the United States born since mid-1920 using OCAs (oral contraceptive agents) increased slightly more than 15% from January 1960 to September 1965. Fertility declined during these years and a relationship between rising OCA usage and declining birth rate is examined. The age pattern of decline in marital fertility was not found to be similar to the pattern of increase in using the pill. The decline in total fertility was also found to be well in advance of the increase in pill use. In the period between 1960 and 1965 the first order fertility rate dropped by 17.8% and the proportion of marital duration 0 to 4 using the pill was 17.7%. The annual patterns however are very different in spite of this apparent similarity in rates.
Published Version
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