Variable Description

Name
H4GH3Y
Label
S4Q3Y LAST MENSTRUAL PERIOD START Y-W4
Dataset

Summary Statistics for 'H4GH3Y'

Value Valid Label Frequency % of Valid % of All
. Missing missing 27
0.17%
1989 Valid 1989 1
0.01%
0.01%
1994 Valid 1994 1
0.01%
0.01%
1995 Valid 1995 1
0.01%
0.01%
1998 Valid 1998 4
0.05%
0.03%
1999 Valid 1999 8
0.10%
0.05%
2000 Valid 2000 9
0.11%
0.06%
2001 Valid 2001 13
0.16%
0.08%
2002 Valid 2002 12
0.15%
0.08%
2003 Valid 2003 11
0.13%
0.07%
2004 Valid 2004 24
0.29%
0.15%
2005 Valid 2005 38
0.46%
0.24%
2006 Valid 2006 104
1.26%
0.66%
2007 Valid 2007 877
10.63%
5.59%
2008 Valid 2008 7,130
86.40%
45.41%
2009 Valid 2009 19
0.23%
0.12%
9996 Missing refused 1
0.01%
9997 Missing legitimate skip 7,349
46.81%
9998 Missing don't know 72
0.46%
Total Responses Valid Invalid Min Max
15701 8252 7449 1989 2009

Representation

Representation Type
Code List
Selection Style
SelectOne
Measurement Unit
numeric
Measurement Unit
numeric
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

H4GH3Y

Lineage

  • Wave IV In-Home Interview - H4GH3Y
    S4Q3Y LAST MENSTRUAL PERIOD START Y-W4
    • 3Y. What is the date when your last menstrual period began? [Year]

Concordance

Add Health
Wave IV
Wave IV In-Home Interview
Wave IV In-Home Interview
H4GH3Y
1989
0.01%
1994
0.01%
1995
0.01%
1998
0.05%
1999
0.10%
2000
0.11%
2001
0.16%
2002
0.15%
2003
0.13%
2004
0.29%
2005
0.46%
2006
1.26%
2007
10.63%
2008
86.40%
2009
0.23%
Add Health
Wave IV
Wave IV In-Home Interview
Wave IV In-Home Interview
H4GH3Y
1989
0.01%
1994
0.01%
1995
0.01%
1998
0.03%
1999
0.05%
2000
0.06%
2001
0.08%
2002
0.08%
2003
0.07%
2004
0.15%
2005
0.24%
2006
0.66%
2007
5.59%
2008
45.41%
2009
0.12%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Wave IV In-Home Interview H4GH3Y 8,252 7,449 1,989 2,009
Add Health
Wave IV
Wave IV In-Home Interview
Wave IV In-Home Interview
H4GH3Y
1989 1989
1994 1994
1995 1995
1998 1998
1999 1999
2000 2000
2001 2001
2002 2002
2003 2003
2004 2004
2005 2005
2006 2006
2007 2007
2008 2008
2009 2009