IFSS_AGEMARH_1: R's age at marriage to first husband

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Summary for Variable Group: Sociodemographic characteristics

The variables in this group describe the respondent's marital status, age, racial and ethnic background, religion, attitudes, region of residence, and farm experience. In addition, the unique identifier variable is included in this group. Information related to the respondent's education is described in the "Education" variable group.


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.


IFSS_AGEMARH_1

R's age at marriage to first husband

Availability

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

CMMARRHX Computed 2002 NSFG
CMBIRTH AA-2 2002 NSFG
AGEMARHX CB-2 2002 NSFG
WHMARH1 CB-12 1995 NSFG
WHMARCH CD-12 1995 NSFG
BDAYCENM AA-2 1995 NSFG
F19M1MO F-19 1988 NSFG
F15MO F-15 1988 NSFG
A_3 A-3 1988 NSFG
F16_1CM F-16 1982 NSFG
F15 F-15 1982 NSFG
CMBIRTH N/A 1982 NSFG
A7_CM A7 1976 NSFG: Couple File
A13MON_1ST M_A-12/PM_A-13 1976 NSFG: Couple File
A12A13_MNTH M_A-12/PM_A-13 1976 NSFG: Couple File
MAR_MMMYY Q. 11 1973 NSFG
MAR1_MMYY Q.12 1973 NSFG
DOB_MMYY Q.6 1973 NSFG
MAR_DTBEGIN CM289/PM162A 1970 NFS
MAR1_DTBEGAN CM292/PM158 1970 NFS
DOB N/A 1970 NFS
MAR_DTBEGIN 14 1965 NFS
MAR1_DTBEGAN 17 1965 NFS
DOB N/A 1965 NFS
MAR1_DT 9 1960 GAF
DOB N/A 1960 GAF
MAR1_DTY 6, 7, 7a 1955 GAF
MAR1_DTM 6, 7, 7a 1955 GAF
DOB_Y 28 1955 GAF
DOB_M 28 1955 GAF

Description

IFSS_AGEMARH_1 contains the respondent's age at her first marriage.

General Comparability Notes

Summary: This variable is largely comparable over time, though question structure differs between surveys, and universes vary due to changes in the classification of cohabiting relationships over time. In particular, informal marriages are included in 1973, 1976 and 1982. In nearly all cases, IFSS_AGEMARH_1 is computed from IFSS_CMMARRH_1 and IFSS_CMBIRTH.

In all years, IFSS_AGEMARH_1 is available for all ever-married respondents, regardless of the number of times they have been married. For respondents who have only been married once, this variable will be identical to IFSS_AGEMARH_CMR.

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. Thus, first marriages in the 1973, 1976 and 1982 NSFGs may have been informal. Interested users can use IFSS_INFORM_1 to identify informal marriages in 1973, 1976, and 1982. Overall, however, the prevalence of cohabitation was low in the time periods covered by these surveys, so the vast majority of relationships described by this variable are formal marriages.

In all survey years except for the 2002 NSFG, IFSS_AGEMARH_1 is computed from IFSS_CMMARRH_1 and IFSS_CMBIRTH. See the comparability note for IFSS_CMMARRH_1 for more information on question text and structure and respondent universe changes over time. IFSS_AGEMARH_1 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_1=trunc((IFSS_CMMARRH_1-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 first marriage were then asked how old they were when they got married the first 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_1 when it is available, and use age at first marriage when it is not.

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+
CMR Y Y Y
1 Y Y Y
2 Y Y

See also:
IFSS_CMMARRH_1
IFSS_CMBIRTH
IFSS_TIMESMAR
IFSS_INFORM_1
IFSS_AGEMARH_2
IFSS_AGEMARH_CMR
IFSS_DOBHUSB_1
IFSS_HXAGEMAR_1
IFSS_MARBEFH_1
IFSS_LVTOGH_1
IFSS_STRTOGH_1
IFSS_MARENDH_1
IFSS_DIVDATH_1
IFSS_WNDIEH_1
IFSS_WNSTPH_1

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

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