Derivation
variable: sachetu [sachet days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: chibukuu [chibuku days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: homebru [homebrew days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: wineu [wine days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: carlsbu [carlsburg days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: kucheku [kuche days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: poweru [power days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: brandyu [brandy days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
variable: malawigu [gin days last 7 days] (table[s]: ncdk_personal, ncdl_personal)
Total number of days when alcohol consumed estimated from the days reported to drink the various drinks.
gen numbdrinkday=max(sachetu, chibukuu, homebru, wineu, carlsbu, kucheku, poweru, brandyu, malawigu)