Pregnancy, 2017-2019

Variable: BFEEDWKS
Description/Question: Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1), and child is currently under age 19 and lived with R at least 2 months (lastage1 GE 2 and inkidage LT 228)
Notes: This variable has been modified for public use, and the original variable is accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Pregnancy, 2015-2017

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1), and child is currently under age 19 and lived with R at least 2 months (lastage1 GE 2 and inkidage LT 228)
Notes:

Pregnancy, 2013-2015

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2011-2013

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2006-2010

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: Preg recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2002

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: Preg recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and (BC-2 NBRNALIV = 1 or (BC-2 NBRNALIV > 1 and BC-3 MULTBRTH = 5))) and child currently under age 19 lived with R at least 2 months (lastage ge 2 and kidage lt 228)
Notes:

Pregnancy, 2017-2019

Variable: BFEEDWKS
Description/Question: Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1), and child is currently under age 19 and lived with R at least 2 months (lastage1 GE 2 and inkidage LT 228)
Notes: This variable has been modified for public use, and the original variable is accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Pregnancy, 2015-2017

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1), and child is currently under age 19 and lived with R at least 2 months (lastage1 GE 2 and inkidage LT 228)
Notes:

Pregnancy, 2013-2015

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2011-2013

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: pregnancy recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2006-2010

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: Preg recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and nbrnlv_s = 1) and child is currently under age 19 lived with R at least 2 months (lastage1 GE 2 and kidage LT 228)
Notes:

Pregnancy, 2002

Variable: BFEEDWKS
Description/Question Duration of breastfeeding in weeks (recode)
Type: Preg recode

Universe: Applicable if pregnancy ended in single live birth (OUTCOME = 1 and (BC-2 NBRNALIV = 1 or (BC-2 NBRNALIV > 1 and BC-3 MULTBRTH = 5))) and child currently under age 19 lived with R at least 2 months (lastage ge 2 and kidage lt 228)
Notes: