By Anonymous - November 3, 2014

AHS2
> Baseline
> A4

Baseline Variable: MSY

Description

Number of years since diagnosed with: Multiple sclerosis

Notes

* "Never Had" value, coded as 0, added as appropriate as part of the never_had_updates
.
* Only present in version 1

Data Values

Current

Levels Value
(empty string) Missing
0 Never Had (derived from on A04Q8
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
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

* A04Q8
- "never been told that you had any of the conditions listed below"
* MS
- Treated for this in the last 12 months: Multiple sclerosis

Location

Questionnaires

Questionnaire Version Labeled Page Physical Page TIFF Image Index Scan Path
1 A4 info
/image
7 04 ''R:\Tiff_Quest_V1''
2 not present
3 not present

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 MSY = '0'
where MSY = ''
and A04Q8 = '1';

Before / After counts

Version 1

Before After
A04Q8 MSY Count A04Q8 MSY Count
3056 3056
* 1 * 1
1 6 1 6
2 1 2 1
3 1 3 1
4 1 4 1
5 4 5 4
1 1955 1 0 1955

Version 2 / 3

(not present)