Following is a response from DHS Technical Specialist, Shireen Assaf:
To get the correct estimates for the antibiotics use indicator you need to indicate that this is among those with ARI symptoms (i.e. you need to add ari==1 in coding the antibiotic indicator). The code below would give you the correct estimates. I also provided the same code for fever for table 10.6
*Table 10.5
gen ari=0
replace ari=1 if h31b==1 & (h31c==1 | h31c==3)
replace ari =. if b5==0
gen antibari=0 if ari==1
replace antibari=1 if ari==1 & h37i==1
replace antibari=1 if ari==1 & h37j==1
replace antibari=1 if ari==1 & h37n==1
*Table 10.6
gen fever=0
replace fever=1 if h22==1
replace fever=. if b5==0
gen antibf=0 if fever==1
replace antibf=1 if fever==1 & h37i==1
replace antibf=1 if fever==1 & h37j==1
replace antibf=1 if fever==1 & h37n==1