Table 3

Summary statistics of births and other reproductive events, by time since LARC discontinuation and whether switched to a non-LARC method after LARC discontinuation

Years After LARC DiscontinuationContraceptive Method in Year Before Birth
0–80–50–2NoneNon-LARC Method
Distribution of LARC Discontinuation Spell-Ending Events      
 Birth 61.9 58.0 44.5 46.1 15.8 
  Resulting from an intended pregnancy (intended fertility rate) 45.2 42.8 34.6 36.6 8.6 
  Resulting from an unintended pregnancy 16.7 15.2 9.9 9.5 7.2 
 New LARC insertion 17.6 15.7 9.6   
 Sterilization 13.1 11.6 8.8   
 No event 7.4 14.8 37.0   
Percentage From Intended Pregnancy Among Births Following No Method 79.4 79.3 79.7   
Percentage From Intended Pregnancy Among Births Following Switch to a Non-LARC Method 54.5 55.6 65.8   
Years After LARC DiscontinuationContraceptive Method in Year Before Birth
0–80–50–2NoneNon-LARC Method
Distribution of LARC Discontinuation Spell-Ending Events      
 Birth 61.9 58.0 44.5 46.1 15.8 
  Resulting from an intended pregnancy (intended fertility rate) 45.2 42.8 34.6 36.6 8.6 
  Resulting from an unintended pregnancy 16.7 15.2 9.9 9.5 7.2 
 New LARC insertion 17.6 15.7 9.6   
 Sterilization 13.1 11.6 8.8   
 No event 7.4 14.8 37.0   
Percentage From Intended Pregnancy Among Births Following No Method 79.4 79.3 79.7   
Percentage From Intended Pregnancy Among Births Following Switch to a Non-LARC Method 54.5 55.6 65.8   

Source: Authors' simulations using data from the National Survey of Family Growth (NSFG) 2006–2010, 2011–2013, 2011–2015, and 2015–2017, and the National Longitudinal Survey of Youth 1997 (NLSY97), 2002–2017.

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