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FP-2 Data Details

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FP-2 Reduce the proportion of females experiencing pregnancy despite use of a reversible contraceptive method

About the Data

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

Data Source: 
Guttmacher Institute Abortion Provider Survey
National Survey of Family Growth
Changed Since the Healthy People 2020 Launch: 
No
Measure: 
percent
Baseline (Year): 
12.4 (2002)
Target: 
9.9
Target-Setting Method: 
Projection/trend analysis
Target-Setting Method Justification: 
Trend data from 1995 to 2002 show a decline in the proportion of females experiencing pregnancy despite use of a reversible contraceptive method. In 1995, the proportion of females experiencing pregnancy despite use of a reversible contraceptive method was 15 percent. In 2002, the proportion fell to 12 percent. Based on this trend, a 25-percent improvement is proposed.
Numerator: 

Number of pregnancies that occur within the first 12 months of reported continuous use of a reversible contraceptive method among females aged 15 to 44 years, and their partners

Denominator: 

Number of consecutive months that a reversible contraceptive method was used by females aged 15 to 44 years, and their partners

Comparable Healthy People 2010 Objective: 
Retained from HP2010 objective
Questions Used to Obtain the National Baseline Data: 

    From the 2002 National Survey of Family Growth:

    [NUMERATOR:]

    Please write the methods you used each month on the calendar. I need to know about all the methods you used, so if you used more than one method, please write down all methods you used that month.

    1. Birth control pills
    2. Condom
    3. Partner's vasectomy
    4. Diaphragm
    5. Foam
    6. Jelly or cream
    7. Cervical cap
    8. Suppository, insert
    9. Today sponge
    10. Female condom, vaginal pouch
    11. IUD, Coil, Loop
    12. Norplant
    13. Depo-provera. Injectables
    14. Morning after pill
    15. Rhythm or safe period by calendar
    16. Safe period by temperature, cervical mucus test, natural family planning
    17. Withdrawal, pulling out
    18. Respondent sterile
    19. Partner sterile
    20. Other method (specify)

    How many months or weeks had you been pregnant when the baby was born/that pregnancy ended? [Note: this yields date pregnancy began.]

    From the 2001 Abortion Provider Survey:

    [DENOMINATOR:]

    Before you found out you were pregnant, what was the LAST contraceptive method that you used to prevent pregnancy, including rhythm, withdrawal or condoms?

    1. Pill
    2. Condom, rubber (for males)
    3. Female condom, vaginal pouch
    4. Diaphragm with or without jelly or cream
    5. Sponge (TODAY)
    6. Foam/cream/jelly
    7. Suppository, insert (Semicid, Encara Oval)
    8. IUD, coil, loop
    9. Rhythm/natural family planning
    10. Withdrawal
    11. Norplant, implants in the arm
    12. Depo-Prevera, injectables, shot
    13. Emergency contraception/morning-after pill
    14. Other method (specify)
    15. Never used a method before this pregnancy

    In what month and year did you stop using that method?

    ______/______Month Year

    For about how many months in a row had you been using that method?

    1. Less than 1 month
    2. 1 month
    3. 2 months
    4. 3 months
    5. 4 months
    6. 5 months
    7. 6 months
    8. 7 months
    9. 8 months
    10. 9 months
    11. 10 months
    12. 11 months
    13. 12 months
    14. 13 months
    15. 14 months
    16. 15 months
    17. 16 months
    18. 17 months
    19. 18-24 months
    20. 25-26 months
    21. 27-28 months
    22. 29-36 months
    23. 37 or more months (3 or more years)

    Had you ever used that method before the months specified above?

    1. Yes
    2. No

    Had you stopped using all methods to prevent pregnancy before you became pregnant this time?

    1. Yes
    2. No
Data Collection Frequency: 
Periodic
Methodology Notes: 

    Pregnancies include live births, miscarriages, or induced abortions.

    Females are considered to have experienced pregnancy despite use of a reversible method if there was continuous method use (in 12-month intervals) and they became pregnant during a month of use of one or more of the following methods: birth control pills, condom (rubber), diaphragm, foam/jelly/cream, cervical cap, suppository, insert, Today™ sponge, female condom (vaginal pouch), IUD, coil, loop, Norplant, Depo-provera, injectables, withdrawal (pulling out), rhythm/natural family planning, or emergency contraception/morning-after pill.

    NSFG data are adjusted for underreporting of abortions using data from The Guttmacher Institute’s Abortion Patient Survey. Detailed information on adjustment procedure, contraceptive methods and failure rates have been published by The Guttmacher Institute.

References

Additional resources about the objective

  1. Kost, K, Singh, S., Vaughan, B., Trussell, J., & Bankole, A. (2008). Estimates of contraceptive failure from the 2002 National Survey of Family Growth. Contraception, 77 (1), 10-21.