tblBAS - Basic clinical, background and demographic information

The current Ethnicity variable is catered to an American audience. COHERE and CASCADE both agree this variable should be re-evaluated and re-formatted so it can be universal. Additionally, CASCADE does not collect Ethnicity in this way, as it is not relevant to our cohorts. We suggest there to be a further discussion on Ethnicity and to invite relevant individuals to this discussion. Please suggest individuals who can add value to a more universal Ethnicity variable.

The current Ethnicity variable is as follows:

ETHNIC field

containing table

tblBAS

explanation of variable

Ethnicity of patient

format of data

numeric. see coding table for valid codings.

exists since HICDEP version

1.30

Coding Table

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Code	Ethnicity of patient
10	White
20	Black
21	Black African
22	Black Caribbean
30	Hispanic
40	Asian
50	Americas
60	Indigenous
1020	1+2
1040	1+4
2030	2+3
3040	3+4
98	Prohibited
99	Unknown

As brought up by Sara Lodi in a previous discussion, we need to be consistent with the way we collect how individuals seroconverted (if they are seroconverters). COHERE uses a variable called SEROCO_M, and CASCADE uses the variable SEROHOW. It was agreed by COHERE and CASCADE that we would collect it as in CASCADE. We suggest this to be added as an additional field to tblBAS.

Additional fields

Field name	Format	Description
SEROHOW	numeric: 1 = Midpoint between last neg/first pos test 2 = Lab evidence of seroconversion 3 = Seroconversion illness 4 = Other 9 = Unknown	how was the seroconversion date determined?

CASCADE currently collects 'national' in the Origin variable of tblBAS which comprises of 62% of our response for this variable. Our cohorts, for the most part, are from single countries, so we propose to add country codes to Origin so our current 'national' variable can be more readily used. The following additions apply to CASCADE and are coded starting from 100; however, we should discuss adding in all European countries to this field.

ORIGIN field

containing table

tblBAS

explanation of variable

Nationality or region of origin of patient

format of data

character (1-3 letter/numeric codes). see coding table for valid codings.

exists since HICDEP version

1.30

Coding Table

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Code	Region of origin
10	Africa
11	Northern Africa
12	Sub-Saharan Africa
20	Asia
30	Oceania (not Australia)
40	Australia & New Zealand
50	Americas
51	North America
52	Central & South America
60	Middle East
70	Europe
71	Western Europe
72	Eastern Europe
99	Unknown
100	Austria
101	Australia
102	Canada
103	France
104	Germany
105	Greece
106	Italy
107	Kenya
108	Netherlands
109	Norway
110	Rwanda
111	South Africa
112	Spain
113	Switzerland
114	Uganda
115	United Kingdom
116	Zimbabwe