Table 2

Multinomial logistic regression of birth, new LARC insertion, and sterilization after LARC discontinuation: Women who discontinued LARC use, 2002–2017, relative risk ratios

Live BirthNew LARC InsertionSterilization
Age at LARC Discontinuation  ***  
 15–19 1.17 0.18* 0.21 
 20–24 1.97* 1.04 0.57 
 25–29 1.70* 0.56 0.52 
 30–34 1.00 1.00 1.00 
 35+ 1.31 1.47 3.51** 
Education at LARC Discontinuation    
 Less than high school 1.21 0.90 0.62 
 High school 1.00 1.00 1.00 
 Some college 1.13 0.89 0.53 
 Bachelor's degree or more 1.43 0.58 0.60 
Race/Ethnicity  ***  
 White 1.00 1.00 1.00 
 Hispanic 1.08 0.98 0.85 
 Black 0.69 1.57 0.42 
 Other 4.79*** 8.44*** 3.34 
Parity at LARC Discontinuation  ***  
 0 0.43*** 0.72 0.75 
 1 1.00 1.00 1.00 
 2+ 0.62** 0.69 2.40* 
Union Status at LARC Discontinuation  **  
 Married 1.00 1.00 1.00 
 Cohabiting 0.67* 0.76 0.53 
 Single 0.47*** 1.09 0.60 
Duration of LARC Use Before Discontinuation  ***  
 1 year 2.43*** 7.96*** 1.38 
 2 years 1.00 1.00 1.00 
 3 years 1.46 1.65 1.51 
 4+ years 1.53* 0.66 1.51 
Time Since the Year of LARC Discontinuation  ***  
 1 year 0.61** 1.01 2.98* 
 2 years 1.00 1.00 1.00 
 3 years 0.76 1.73 1.28 
 4 or more years 0.25*** 0.68 1.81 
Calendar Year of LARC Discontinuation    
 2002–2006 0.78 0.84 0.65 
 2007–2011 1.04 1.18 1.19 
 2012–2017 1.00 1.00 1.00 
Live BirthNew LARC InsertionSterilization
Age at LARC Discontinuation  ***  
 15–19 1.17 0.18* 0.21 
 20–24 1.97* 1.04 0.57 
 25–29 1.70* 0.56 0.52 
 30–34 1.00 1.00 1.00 
 35+ 1.31 1.47 3.51** 
Education at LARC Discontinuation    
 Less than high school 1.21 0.90 0.62 
 High school 1.00 1.00 1.00 
 Some college 1.13 0.89 0.53 
 Bachelor's degree or more 1.43 0.58 0.60 
Race/Ethnicity  ***  
 White 1.00 1.00 1.00 
 Hispanic 1.08 0.98 0.85 
 Black 0.69 1.57 0.42 
 Other 4.79*** 8.44*** 3.34 
Parity at LARC Discontinuation  ***  
 0 0.43*** 0.72 0.75 
 1 1.00 1.00 1.00 
 2+ 0.62** 0.69 2.40* 
Union Status at LARC Discontinuation  **  
 Married 1.00 1.00 1.00 
 Cohabiting 0.67* 0.76 0.53 
 Single 0.47*** 1.09 0.60 
Duration of LARC Use Before Discontinuation  ***  
 1 year 2.43*** 7.96*** 1.38 
 2 years 1.00 1.00 1.00 
 3 years 1.46 1.65 1.51 
 4+ years 1.53* 0.66 1.51 
Time Since the Year of LARC Discontinuation  ***  
 1 year 0.61** 1.01 2.98* 
 2 years 1.00 1.00 1.00 
 3 years 0.76 1.73 1.28 
 4 or more years 0.25*** 0.68 1.81 
Calendar Year of LARC Discontinuation    
 2002–2006 0.78 0.84 0.65 
 2007–2011 1.04 1.18 1.19 
 2012–2017 1.00 1.00 1.00 

Note: Significance markers listed opposite of variable names indicate results of Wald test of the null hypothesis that the full set of variable coefficients are jointly equal to 1.

Sources: National Survey of Family Growth (NSFG), 2006-2010, 2011–2013, 2013-2015, and 2015–2017 (N = 598 person-years); and National Longitudinal Survey of Youth 1997 (NLSY97), 2002–2017 waves (N = 1,189 person-years).

p < .10; *p < .05; **p < .01; ***p < .001

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