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MICH-7.1 Data Details

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MICH-7.1 Reduce cesarean births among low-risk women with no prior cesarean births

About the Data

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

Data Source: 
National Vital Statistics System-Natality (NVSS-N); Centers for Disease Control and Prevention, National Center for Health Statistics (CDC/NCHS)
Changed Since the Healthy People 2020 Launch: 
Yes
Measure: 
percent
Baseline (Year): 
26.5 (2007)
Target: 
23.9
Target-Setting Method: 
10 percent improvement
Numerator: 

Number of births delivered by cesarean section to low-risk females (full-term, singleton, vertex presentation)

Denominator: 

Number of live births to low-risk females (full-term, singleton, vertex presentation)

Comparable Healthy People 2010 Objective: 
Retained from HP2010 objective
Data Collection Frequency: 
Annual
Methodology Notes: 

    A low-risk female is defined as one with a full-term (at least 37 weeks since the first day of the last normal menstrual period [LMP]) singleton (not a multiple) pregnancy, with a vertex fetus (head facing in a downward position in the birth canal). A description of the primary measurement used to determine the fetus’s gestational age, the interval between the first day of LMP and the birth, has been published by NCHS.

Caveats and Limitations: 
Estimates were calculated with data supplied by states that had adopted the 2003 version of the U.S. Standard Certificate of Live Birth. Trends over time cannot be evaluated until all states implement the 2003 Standard Certificate and provide data in the same format.
Trend Issues: 
Estimates for 2007 are based on 22 states (representing 53 percent of all U.S. births), excluding AL, AK, AZ, AR, CT, GA, HI, IL, LA, ME, MD, MA, MI, MN, MS, MO, MT, NV, NJ, NM, NC, OK, OR, RI, UT, VA, WV, WI, DC, and New York City. Estimates for 2008 are based on 27 states (representing 65 percent of all U.S births), excluding AL, AK, AZ, AR, CT, HI, IL, LA, ME, MD, MA, MN, MS, MO, NV, NJ, NC, OK, RI, UT, VA, WV, WI, and DC. Estimates for 2009 are based on 28 states (representing 66 percent of all U.S. births), excluding AL, AK, AZ, AR, CT, HI, IL, LA, ME, MD, MA, MN, MS, MO, NV, NJ, NC, OK, RI, VA, WV, WI, and DC. Estimates for 2010 are based on 33 states and DC (representing 76 percent of all U.S. births), excluding AL, AK, AZ, AR, CT, HI, LA, ME, MA, MN, MS, NJ, NC, RI, VA, WV, and WI.

Revision History

Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.

Description of Changes Since the Healthy People 2020 Launch: 
In 2017, the estimates for geographic location were updated to reflect the 2013 urban/rural classification scheme.

References

Additional resources about the objective

  1. Osterman MJK, Martin JA, Menacker F. Expanded health data from the new birth certificate, 2006. National vital statistics reports; vol 58 no 5. Hyattsville, MD: National Center for Health Statistics. 2009.