By Anonymous - November 3, 2014

AHS2
> Baseline
> A3

Baseline Variable: ASTHMAY

Description

Number of years since diagnosed with: Asthma

Notes

* "Never Had" value, coded as 0, added as appropriate as part of the never_had_updates
.

Data Values

Current

Levels Value
(empty string) Missing
0 Never Had (derived from on A03Q7
variables)
1 Less than 5 years ago
2 5-9 years ago
3 10-14 years ago
4 15-19 years ago
5 20+ years ago

Original

Levels Value
(empty string) Missing Missing
1 Less than 5 years ago
2 5-9 years ago
3 10-14 years ago
4 15-19 years ago
5 20+ years ago

* A03Q7
- "never been told that you had any of the conditions listed below"
* ASTHMA
- Treated for this in the last 12 months: Asthma

Location

Questionnaires

Questionnaire Version Labeled Page Physical Page TIFF Image Index Scan Path
1 A3 info
/image
6 03 ''R:\Tiff_Quest_V1''
2 A3 info
/image
6 44 ''R:\Tiff_Quest_V2''
3 A3 info
/image
6 44 ''R:\Tiff_Quest_V3''

Database Tables

Table Name Description
image.dbo.part1 modified version 1 part 1 data
image.dbo.part1_unmodified original/raw version 1 part 1 data

Modifications

"Never Had" Update

For details see: "Never Had" updates
. This is a never_had_updates#Type 5
variable.

SQL Code:

-- Version 1
update image.dbo.part1
set ASTHMAY = '0'
where ASTHMAY = ''
and A03Q7 = '1';

-- Version 2
update image.dbo.v2part1
set ASTHMAY = '0'
where ASTHMAY = ''
and A03Q7 = '1';

-- Version 3
update image.dbo.v3part1
set ASTHMAY = '0'
where ASTHMAY = ''
and A03Q7 = '1';

Before / After Counts

Version 1

Before After
A03Q7 ASTHMAY Count A03Q7 ASTHMAY Count
2353 2353
1 117 1 117
2 54 2 54
3 29 3 29
4 29 4 29
5 205 5 205
1 2224 1 0 2224
1 1 4 1 1 4
1 2 1 1 2 1
1 4 4 1 4 4
1 5 5 1 5 5

Version 2

Before After
A03Q7 ASTHMAY Count A03Q7 ASTHMAY Count
15176 15176
* 2 * 2
1 690 1 690
2 339 2 339
3 259 3 259
4 211 4 211
5 1163 5 1163
0 4 0 4
1 11419 1 0 11419
1 1 3 1 1 3
1 2 3 1 2 3
1 3 2 1 3 2
1 4 2 1 4 2
1 5 17 1 5 17

Version 3

Before After
A03Q7 ASTHMAY Count A03Q7 ASTHMAY Count
31166 31166
* 10 * 10
1 1247 1 1247
2 737 2 737
3 543 3 543
4 400 4 400
5 2237 5 2237
1 25670 1 0 25670
1 1 19 1 1 19
1 2 14 1 2 14
1 3 9 1 3 9
1 4 4 1 4 4
1 5 26 1 5 26