IFSS_AGEMARH_CMR: R's age at marriage to current/most recent husband

View as PDF | Download Stata source code | Download EXCEL File

Summary for Variable Group: Marital and relationship history

This group of variables is designed to capture information about the respondent's marriage(s) and/or current cohabitating relationship. Information is provided on the respondent's first two marriages as well as her current or most recent marriage. Variables include date of marriage, age at marriage, husband's age at marriage, husband's date of birth, whether the respondent lived with her husband prior to marriage, whether he had been married before, and how and when the marriage ended. For respondents who are currently cohabiting with an unmarried partner, much of the same information is available. Additional information is available for the respondent's current husband or cohabiting partner including race, education, whether he has children from a previous marriage, where those children live, and whether he financially supports them. This group also includes information on the respondent's cohabitation experience.


R's age at marriage to current/most recent husband


2002 NSFG
1995 NSFG
1988 NSFG
1982 NSFG
1976 NSFG: Couple File
1973 NSFG
1970 NFS
1965 NFS
1960 GAF
1955 GAF

Source Variables

Source Questions

CMMARRCH Computed 2002 NSFG
F15MO F-15 1988 NSFG
F15 F-15 1982 NSFG
MARAG Computed 1976 NSFG: Couple File
MAR4_DT 9 1960 GAF
MAR3_DT 9 1960 GAF
MAR2_DT 9 1960 GAF
MAR1_DT 9 1960 GAF
MAR3_DTY 7a 1955 GAF
MAR2_DTY 7a 1955 GAF
MAR2_DTM 7a 1955 GAF
MAR1_DTY 7a 1955 GAF
MAR1_DTM 7a 1955 GAF


IFSS_AGEMARH_CMR ascertains the respondent's age at her current or most recent marriage.

General Comparability Notes

Summary: This variable is highly comparable over time, though question structure differs between surveys, and universes vary slightly due to changes in the classification of cohabiting relationships over time. In nearly all cases, IFSS_AGEMARH_CMR is computed from IFSS_CMMARRH_CMR and IFSS_CMBIRTH.

In all years, IFSS_AGEMARH_CMR is available for all ever-married respondents, regardless of the number of times they have been married. For currently married respondents, IFSS_AGEMARH_CMR provides their age at the start of their current marriage. For post-married (widowed, divorced, or annulled) respondents, it contains their age at the start of their previous marriage. For cohabiting respondents in the 1988, 1995 and 2002 National Surveys of Family Growth, it contains their age at the start of their most recent formal marriage. For respondents who have been married once or twice, this variable will be identical to IFSS_AGEMARH_1 or IFSS_AGEMARH_2.

In all years, the universe consists of respondents who report being married at least once. The classification of cohabiting relationships or informal marriages varies over time, resulting in slight universe changes. In the 1973, 1976, and 1982 NSFGs cohabiting relationships were coded as "informal marriages" and respondents who had been informally married are included in the relevant question universe. In the 1988, 1995, and 2002 NSFGs, only formal marriages are classified as marriages. For comparability with later years, IFSS restricted the universes in 1973, 1976 and 1982 to include only formally married and post-married respondents. Informally married respondents are harmonized in IFSS_CPHERAGE. There are a handful of post-married respondents who report that their previous marriage was informal; those marriages are included here.

In all survey years except for the 2002 NSFG, IFSS_AGEMARH_CMR is computed from IFSS_CMMARRH_CMR and IFSS_CMBIRTH. See the comparability note for IFSS_CMMARRH_CMR for more information on question text and structure and respondent universe changes over time. IFSS_AGEMARH_CMR is computed by subtracting the respondent's century month of birth from the century month of marriage, dividing the difference by 12, and taking the integer part of the resulting value. Thus, IFSS_AGEMARH_CMR=trunc((IFSS_CMMARRH_CMR-IFSS_CMBIRTH)/12), where trunc(X) truncates X to just the integer part of X.

In the 2002 NSFG, respondents were first asked the date for each of up to five marriages. Respondents who did not know the date of their marriage were then asked how old they were when they got married that time. These responses were incorporated into the century month date of marriage variable by NCHS staff, but the computed age does not always agree with the reported age. Because of this discrepancy, compute from IFSS_CMMARRH_CMR when it is available, and use age at first marriage when it is not. As in IFSS_CMMARRH_CMR, we use the number of times the respondent had been married (IFSS_TIMESMAR) to determine which marriage was the most recent. Thus, if the respondent had been married twice, her age at her second marriage is coded here.

Data Structure Summary:

From 1955 to 2002, IFSS_AGEMARH_CMR, and IFSS_AGEMARH_1 are defined for all ever-married respondents. IFSS_AGEMARH_2 is defined for women who have been married at least twice, but not for women who have been married only once. IFSS_AGEMARH_CMR always contains information on the current or most recent marriage, regardless of what number that marriage is. IFSS_AGEMARH_CMR will contain duplicate information if the respondent has been married less than three times.

Number of Times Married
1955-2002 1 2 3+
1 Y Y Y
2 Y Y

See also:

Imputation Flag Exists

Imputation Flag Values
-1 Illogical value
0 Not imputed
1 Imputed in original study
2 Logically imputed
3 Month imputed (Original file edit)
4 Age known, month imputed
5 Originally imputed as June, recoded to random month
6 Month imputed
7 Multiple regression imputed: Not ascertained
8 Multiple regression imputed: Refused
9 Multiple regression imputed: Don't know
10 Midpoint of a given range
11 Answer comes from a follow-up question
12 Midpoint of a range given as a follow-up
13 Answer is rounded up
14 Answer is rounded down
15 Reported months and weeks, weeks<=4
16 Reported months=trunc(weeks/4.35)
17 Reported months=weeks & weeks>4
18 Reported months!=trunc(weeks/4.35), months!=weeks, weeks>4
19 Months coded NA/RF/DK
20 Weeks coded NA/RF/DK
21 Impossible to determine which method used last

Return to variable list

Inter-university Consortium for Political and Social Research       Inter-university Consortium for Political and Social Research       Population Studies Center
© 2013 The Regents of the University of Michigan