[((HEEverAD = Yes) OR (HEEverAD = No and HENvrAD = 1)]  
HEHaveAD*  
[^Do you/Does [Name]]…READ OUT…  
INTERVIEWER: IF RESPONDENT CONSIDERS THEY DO NOT HAVE CONDITION  
BUT THEY ARE TAKING MEDICATION OR TREATMENT FOR CONDITION, USE  
│CODE 2 ‘STILL HAVE CONDITION AND YOU ARE TAKING MEDICATION OR  
│TREATMENT FOR IT’.  
│1 … still have Alzheimer’s disease but [^you are/he is/she is] not taking medication or  
treatment for it,  
2 or do [^you/[^Name]] still have Alzheimer’s disease and [^you are/ he is/ she is]  
taking medication or treatment for it,  
3 or [^do you/does [^Name]] no longer have Alzheimer’s disease?  
END OF FILTER  
Dementia  
HEEverDM*  
If dementia recorded in feedforward data (FFHeEverDM =1) AND NOT proxy interview:  
[^Our records [^also] show that you have been told by a doctor or other health  
professional that you have, or have had, dementia (or you are taking medication or  
treatment to control dementia).  
Just to confirm, have you ever had dementia?]  
If dementia not recorded in feedforward (FFHeEverDM =0) OR proxy interview:  
[^Has a doctor or other health professional ever told [^you/Name] that [^you have /he  
has/ she has], or [^have/has] had, dementia?]  
01 Yes  
02 No  
If dementia recorded in feed forward and respondent says never had dementia  
(FFHeEverDM = 1 AND HEEverDM = No) AND NOT proxy interview  
HENvrDM  
Textfill if date of diagnosis for dementia = RESPONSE (FFHEDataYDM = Response):  
[^Just to check, we have a record that you were diagnosed with dementia [in ^  
FFHEDateMDE FFHEDateYDE], is this…]  
Textfill if no date of diagnosis in feedforward (FFHEDataYDM AND FFHEDataMDM)  
<> RESPONSE) AND age of diagnosis in feedforward (FFHEAgeDM = Response):  
[^Just to check, we have a record that you were diagnosed with dementia aged  
[^FFHEAgeDM], is this…]  
Else textfill: [^Just to check, we have a record that when we spoke to you [previously  
/in ^FFHEYearDM], you told us you had been diagnosed with dementia. Is this…]  
READ OUT  
│1 …correct, you were diagnosed with this condition,  
2 incorrect, you have never been diagnosed with this condition,  
3 incorrect as you were misdiagnosed, or  
4 incorrect for another reason (please specify)?  
If incorrect for another reason  
││ [(HENvrDM = 4)]  
││  
││HENvOtDM  
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