Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
15
|
10
|
05
|
00
|
87
|
|---|---|---|---|---|---|---|
| 00 | NIU | X | X | X | X | X |
| 01 | 1 year | · | · | · | · | X |
| 02 | 2 years | · | · | · | · | · |
| 03 | 3 years | · | · | · | · | X |
| 04 | 4 years | · | · | · | · | X |
| 05 | 5 years | · | · | · | · | X |
| 06 | 6 years | · | X | · | · | X |
| 07 | 7 years | · | · | X | · | X |
| 08 | 8 years | · | · | X | X | · |
| 09 | 9 years | · | X | · | · | X |
| 10 | 10 years | · | X | X | X | · |
| 11 | 11 years | · | · | X | X | X |
| 12 | 12 years | · | X | X | X | X |
| 13 | 13 years | X | X | X | X | X |
| 14 | 14 years | X | X | X | X | X |
| 15 | 15 years | X | X | X | X | X |
| 16 | 16 years | X | X | X | X | X |
| 17 | 17 years | X | X | X | X | X |
| 18 | 18 years | X | X | X | X | X |
| 19 | 19 years | X | X | X | X | X |
| 20 | 20 years | X | X | X | X | X |
| 21 | 21 years | X | X | X | X | X |
| 22 | 22 years | X | X | X | X | X |
| 23 | 23 years | X | X | X | X | X |
| 24 | 24 years | X | X | X | X | X |
| Code | Label |
15
|
10
|
05
|
00
|
87
|
| 25 | 25 years | X | X | X | X | X |
| 26 | 26 years | X | X | X | X | X |
| 27 | 27 years | X | X | X | X | X |
| 28 | 28 years | X | X | X | X | X |
| 29 | 29 years | X | X | X | X | X |
| 30 | 30 years | X | X | X | X | X |
| 31 | 31 years | X | X | X | X | X |
| 32 | 32 years | X | X | X | X | X |
| 33 | 33 years | X | X | X | X | X |
| 34 | 34 years | X | X | X | X | X |
| 35 | 35 years | X | X | X | X | X |
| 36 | 36 years | X | X | X | X | X |
| 37 | 37 years | X | X | X | X | X |
| 38 | 38 years | X | X | X | X | X |
| 39 | 39 years | X | X | X | X | X |
| 40 | 40 years | X | X | X | X | X |
| 41 | 41 years | X | X | X | X | X |
| 42 | 42 years | X | X | X | X | X |
| 43 | 43 years | X | X | X | X | X |
| 44 | 44 years | · | X | X | X | · |
| 45 | 45 years | X | X | X | X | X |
| 46 | 46 years | · | X | · | · | · |
| 47 | 47 years | · | X | X | · | · |
| 48 | 48 years | · | · | · | · | · |
| 49 | 49 years | · | X | X | · | · |
| Code | Label |
15
|
10
|
05
|
00
|
87
|
| 50 | 50 years | · | X | · | · | · |
| 51 | 51 years | · | · | · | · | · |
| 52 | 52 years | · | X | · | · | · |
| 53 | 53 years | · | · | · | · | · |
| 54 | 54 years | · | · | · | · | · |
| 55 | 55 years | · | X | · | · | · |
| 56 | 56 years | · | · | · | · | · |
| 57 | 57 years | · | · | · | · | X |
| 58 | 58 years | · | · | · | · | X |
| 59 | 59 years | · | X | · | · | · |
| 60 | 60 years | · | X | · | · | · |
| 97 | Unknown-refused | X | X | X | X | · |
| 98 | Unknown-not ascertained | X | X | X | X | · |
| 99 | Unknown-don't know | X | X | X | X | X |
Can't find the category you are looking for? Try the Detailed codes
Description
For female sample persons aged 18 and older who have ever had a live birth, BIRTHAG reports the person's age when her first child was born. Please see Comparability and Universe tabs for information on changes in the wording and universe between samples.
Universe
- 1987: Half of female sample adults age 18+ (excluded from CAEP supplement) who have ever given birth to liveborn infant.
- 2000; 2005; 2010; 2015: Female sample adults age 18+ who ever had a live birth.
Availability
- 1987, 2000, 2005, 2010, 2015
Survey Text
| 2015 |
| 2010 |
| 2005 |
| 2000 |
| 1987 |
2015
Survey form
view entire document:
text
image
Question ID: NAF.120_00.000
Instrument Variable Name: BIRTHAGE
Question Text:
Question Text:
How old were you when your [fill1: child/first child] was born?
06-60 6-60
97 Refused
99 Don't know
97 Refused
99 Don't know
Universe Text: Female sample adults 18+ who have ever had a live born infant
Skip Instructions:
Skip Instructions:
(6-60,R)
if BIRTHAGE GT AGE [go to ERR_BIRTHAGE]
else [go to PAPHAD1]
(D) [go to BIRTHAG2]
ERR_BIRTHAGE
Hard Edit:
*
Entry cannot be greater than age.
*
Please correct.
if BIRTHAGE GT AGE [go to ERR_BIRTHAGE]
else [go to PAPHAD1]
(D) [go to BIRTHAG2]
ERR_BIRTHAGE
Hard Edit:
*
Entry cannot be greater than age.
*
Please correct.
2010
Survey form
view entire document:
text
image
Question ID: NAF.120_00.000
Instrument Variable Name: BIRTHAGE
QuestionText:
QuestionText:
How old were you when your [fill1: child/first child] was born?
06-60 6-60 years
97 Refused
99 Don't know
97 Refused
99 Don't know
UniverseText: Female sample adults 18+ who have ever had a live born infant
SkipInstructions:
SkipInstructions:
(6-60,R) if BIRTHAGE GT AGE [goto ERR_BIRTHAGE] else [goto PAPHAD1]
(D) [goto BIRTHAG2]
(D) [goto BIRTHAG2]
2005
Survey form
view entire document:
text
image
NAF.120_00.000
Instrument Variable Name: BIRTHAGE
Question Text:
Question Text:
How old were you when your [fill1: child/first child] was born?
06-60 6-60 years
97 Refused
99 Don't know
97 Refused
99 Don't know
Universe Text: Female sample adults 18+ who have ever had a live born infant
Skip Instructions:
Skip Instructions:
(6-60,R) [goto PAPHAD] (D) [goto BIRTHAG2]; if BIRTHAGE GE AGE [goto ERR1_BIRTHAGE]
2000
Survey form
view entire document:
text
image
Check item NAFCCI03: Refer to Household Composition, Basic Module.
SEX/HHC.110 and AGE/HHC.120.
(1) Male 18-39 (under 30) (END_NAF)
(2) Male 40+ (Check Item NAFCCI09)
(3) Female (NAF.080)
SEX/HHC.110 and AGE/HHC.120.
(1) Male 18-39 (under 30) (END_NAF)
(2) Male 40+ (Check Item NAFCCI09)
(3) Female (NAF.080)
NAF.120
How old were you when your {child/first child} was born?
BIRTHAGE
(08-60) 8-60 years (NAF.130)
(97) Refused (NAF.130)
(99) Don't know (NAF.121)
(97) Refused (NAF.130)
(99) Don't know (NAF.121)
Weights
- 1987, 2000, 2005, 2010, 2015 : SAMPWEIGHT