All Waves

Column

Female, 2017-2019

Variable: preg_int3
Description/Question: Inter-pregnancy interval (in months) between most recent pregnancy conception and prior live birth (computed in post-processing)
Type: computed

Universe: Applicable if R has had at least two pregnancies (PREGNUM GE 2) and the pregnancy immediately preceding the most recent pregnancy ended in a live birth
Notes: This variable has been created for public use, and the original source variables are accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Female, 2015-2017

Variable: preg_int3
Description/Question Inter-pregnancy interval (in months) between most recent pregnancy conception and prior live birth (computed in post-processing)
Type: computed

Universe: Applicable if R has had at least two pregnancies (PREGNUM GE 2) and the pregnancy immediately preceding the most recent pregnancy ended in a live birth
Notes: This variable has been created for public use, with specifications provided in Part 2 of the User’s Guide. The source century-month variables on which this variable is based are accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Female, 2013-2015

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Female, 2011-2013

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Female, 2006-2010

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Female, 2002

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Column

Male, 2017-2019

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Male, 2015-2017

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Male, 2013-2015

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Male, 2011-2013

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Male, 2006-2010

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Male, 2002

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2017-2019 only

Column

Female, 2017-2019

Variable: preg_int3
Description/Question: Inter-pregnancy interval (in months) between most recent pregnancy conception and prior live birth (computed in post-processing)
Type: computed

Universe: Applicable if R has had at least two pregnancies (PREGNUM GE 2) and the pregnancy immediately preceding the most recent pregnancy ended in a live birth
Notes: This variable has been created for public use, and the original source variables are accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Column

Male, 2017-2019

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2015-2017 only

Column

Female, 2015-2017

Variable: preg_int3
Description/Question Inter-pregnancy interval (in months) between most recent pregnancy conception and prior live birth (computed in post-processing)
Type: computed

Universe: Applicable if R has had at least two pregnancies (PREGNUM GE 2) and the pregnancy immediately preceding the most recent pregnancy ended in a live birth
Notes: This variable has been created for public use, with specifications provided in Part 2 of the User’s Guide. The source century-month variables on which this variable is based are accessible by application to the NCHS Research Data Center. See Appendix 7 of the User’s Guide for further information.

Column

Male, 2015-2017

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2013-2015 only

Column

Female, 2013-2015

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Column

Male, 2013-2015

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2011-2013 only

Column

Female, 2011-2013

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Column

Male, 2011-2013

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2006-2010 only

Column

Female, 2006-2010

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Column

Male, 2006-2010

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

2002 only

Column

Female, 2002

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes:

Column

Male, 2002

Variable: Variable does not exist in this survey/wave
Description/Question
Type:

Universe:
Notes: