The U.S. abortion rate has reached its lowest level in three decades, according to a new report released Thursday.
"We don't know why," said study author Rachel Jones, senior research associate at the Guttmacher Institute, a nonprofit group that focuses on reproductive issues. The findings will be published in the March issue of the institute's journal, Perspectives on Sexual and Reproductive Health.
The actual number of abortions dropped to a new low, with 1.2 million abortions in 2005, compared to a high of 1.6 million abortions in 1990.
The report does not include an analysis of why the levels have continued to decline. "We don't regard [the findings] as good or bad," Jones said. "It's a descriptive study."
The abortion rate for 2005 was 19.4 abortions per 1,000 women aged 15 to 44. In comparison, the rate was 29.3 abortions per 1,000 women in 1981, 21.3 abortions per 1,000 women in 2000, and 19.7 abortions per 1,000 women in 2004.
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