The teen birth rate has hit a new record low, according to federal data released on Wednesday.
Researchers from the CDC’s National Center for Health Statistics looked at birth certificates for the year 2014 from all 50 states, the District of Columbia and U.S. territories and found that the teen birth rate is the lowest ever recorded. And, for the first time in seven years, the general fertility rate in the U.S. increased.
Among teens from ages 15 to 19, the birth rate dropped 9% in 2014 to 24.2 births per 1,000 women. Since 1991, the researchers report that the birth rate for this age group has dropped 61%.
Overall, the number of U.S. births in 2014 increased 1% from the year prior. The number of women in their twenties having babies dropped 2% to a record low, while the number of women in their thirties and forties giving birth rose.
The national teen pregnancy rate has also been on a record decline. Data from the U.S. Department of Health and Human Services (HHS) has shown pregnancy rates among teenagers have been consistently dropping for the last two decades, and there was a 10% drop in a year from 2012 to 2013.
Some data suggests that teens are less sexually active than the past, and those that are having sex are using birth control more often. Some experts speculate that increased access to affordable birth control and better sex education have also played a role.
Teens may also be using better, more effective contraceptives, with an increasing (though still low) number of young people from ages 15 to 19 using long-acting reversible contraceptive methods like the IUD or implant. There’s also been a notable increase in the use of the birth control pill among the age group, as well as usage of more than one method.
Birth control methods like the IUD and implant are significantly more effective than other methods, including the pill and condom. The failure rate for the IUD is as low as 0.2% while the pill is 9% and the condom is 18%. New data released on Tuesday revealed that when women are counseled about all of their options, they are more likely to choose the most effective methods, and that can lead to notable declines in unintended pregnancies.
Some indirect factors could also be influencing the latest birth statistics, suggest researchers at the Guttmacher Institute. Women, for instance, are both getting married and having children later in life.
Though teen births are decreasing, the U.S. still has one of the highest teen pregnancy rates in the developed world.