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. Author manuscript; available in PMC: 2016 Sep 3.
Published in final edited form as: N Engl J Med. 2016 Mar 3;374(9):843–852. doi: 10.1056/NEJMsa1506575

Table 2.

Percentage of Unintended Pregnancies That Ended in Abortion and Rate of Unintended Pregnancies That Ended in Birth for All U.S. Females, 2008 and 2011.

Characteristic Percentage of Unintended
Pregnancies That Ended
in Abortion*
Rate of Unintended
Pregnancies That Ended
in Birth
2008 2011 2008 2011

All females 40 42 27 22

Age group

    15–19 yr 37 38 30 21

      15–17 yr 35 43 19 10

      18–19 yr 38 37 47 37

    20–24 yr 41 44 53 40

    25–29 yr 42 42 38 33

    30–34 yr 41 42 24 21

    ≥35 yr 45 46 8 7

Relationship status

    Currently married 20 23 24 18

    Never married, not cohabiting 57 56 16 14

    Formerly married, not cohabiting 67 54 12 19

    Cohabiting 39 41 101 72

Income as a percentage of the federal poverty level

    <100% 41 38 70 60

    100–199% 37 44 45 28

    ≥200% 43 48 12 9

Educational attainment§

    Not a high school graduate 27 35 61 40

    High school graduate or GED equivalent 40 38 31 31

    Some college or associate’s degree 48 49 24 20

    College graduate 48 47 13 11

Race and ethnic group

    White non-Hispanic 36 36 20 17

    Black non-Hispanic 50 50 40 33

    Hispanic 37 40 43 31

Religious affiliation

    Protestant 34 36 28 23

      Mainline Protestant 40 39 29 26

      Evangelical Protestant 27 32 28 20

    Catholic 44 48 26 22

    Other 39 39 20 19

    None 49 49 29 22
*

Pregnancies that ended in miscarriage were excluded.

Rates are reported as the number of unintended pregnancies per 1000 women and girls 15 to 44 years of age.

Girls younger than 15 years of age were excluded because of insufficient data. For the category 35 years of age or older, the numerator is the number of pregnancies among women 35 years of age or older and the population denominator is the number of women 35 to 44 years of age.

§

Calculations by educational attainment were limited to women 20 years of age or older.

Race and ethnic group were self-reported. Data from women and girls who reported their race or ethnic group as “other” are not included here.