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Support #499

Blood pressure feedback

Added by Will Cook almost 7 years ago. Updated almost 7 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Biomarkers and Genetics
Start date:
02/05/2016
% Done:

100%


Description

Hi,

I am working with the blood pressure data from the wave 2/3 nurse health assessment data and I am hoping you could clarify the rules that determined what blood pressure feedback was given to participants, as I read it there appears to be a contradiction in the documentation:

- The nurse protocol documents (7251_nurse_measurement_protocol.pdf , section 6.6. ) says that the feedback is based on the lower of the final 2 readings of the systolic and diastolic pressure and that if either the systolic OR the diastolic reading is at the threshold or greater the advice is given (e.g. if the lowest values of readings 2 and 3 are 141 systolic, 84 diastolic, the advice would be mildly raised).

- However the CAPI documentation seems to suggest that the advice is based on whether ANY of the 3 readings of systolic and diastolic pressure pass the thresholds (See the rules for the 'Computed Variables' on page 22 of 7251_nurse_capi_questionnaire.pdf )

Please could you confirm what determined the blood pressure feedback given to participants?

If the latter rule (CAPI document) then this would suggest that variables ConRais, ModRais, MilRais, NormBP and BPoffer recorded what feedback was given to participants, however I cannot find these variables in the dataset - could you direct me to where they are or if they are not contained within the UKDS dataset would it be possible to provide these variables?

Thank you,

Will

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