││ IF idx = walking aids used [HeAidW = idx]  
│││  
│││ CHECK: (idx = walking aids used (wave 1)) INVOLVING (type of walking aid disputed)  
││││ [idx =IW1[PNum].HeAid INVOLVING HeAidW ]  
││││  
││││ INTERVIEWER: You cannot use this code.  
││││  
│││ END CHECK  
│││  
││ END OF FILTER  
││  
END OF FILTER  
END OF FILTER  
HE60 HEADLA  
IF None = activities has difficulties doing (set A) [None = HeADLa]  
CHECK: activities has difficulties doing (set A).CARDINAL = 1  
││ [HeADLa.CARDINAL = 1 ]  
││  
││ INTERVIEWER: 'None' is an exclusive code at this question.  
││ Please change!  
││  
END CHECK  
END OF FILTER  
HE61 HEADLB  
IF activities has difficulties doing (set B) = None [None = HeADLb]  
CHECK: activities has difficulties doing (set B).CARDINAL = 1 [HeADLb.CARDINAL = 1 ]  
││  
││ INTERVIEWER: 'None' is an exclusive code at this question.  
││ Please change!  
││  
END CHECK  
END OF FILTER  
HE62 HEAID  
IF walking aids used = None [HeAid = None]  
CHECK: walking aids used.CARDINAL = 1 [HeAid.CARDINAL = 1]  
││  
││ INTERVIEWER: 'None' is an exclusive code at this question.  
││ Please change!  
││  
END CHECK  
END OF FILTER  
HE 63 HEAIDW  
IF type of walking aid disputed = RESPONSE [HeAidW = RESPONSE]  
LOOP FOR idx:= 1 TO 8