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+*** ----------------------------------------------------------------------------------------------------
+
+***	                        WFP Standardized Scripts
+***                         Food Consumption Score - Nutrition (FCS-N) 
+
+
+*** Last Update: Oct 2025
+*** Purpose: This script calculates the Food Consumption Score - Nutrition (FCS-N) 
+
+***   Data Quality Guidance References:
+***   - Recommended high frequency checks: Page 30
+***   - Recommended cleaning steps: Page 37
+
+*** ----------------------------------------------------------------------------------------------------
+
+*** Define group labels-  these should match Survey Designer naming conventions
+
+label var FCSNPrMeatF  "Consumption in past 7 days: Flesh meat"
+label var FCSNPrMeatO  "Consumption in past 7 days: Organ meat"
+label var FCSNPrFish   "Consumption in past 7 days: Fish/shellfish"
+label var FCSNPrEggs   "Consumption in past 7 days: Eggs"
+label var FCSNVegOrg   "Consumption in past 7 days: Orange vegetables (vegetables rich in Vitamin A)"
+label var FCSNVegGre   "Consumption in past 7 days: Green leafy vegetables"
+label var FCSNFruiOrg  "Consumption in past 7 days: Orange fruits (fruits rich in Vitamin A)"
+
+*** Check individual food groups
+
+tabstat FCSNPrMeatF FCSNPrMeatO FCSNPrFish FCSNPrEggs FCSNVegOrg FCSNVegGre FCSNFruiOrg, s(mean median min max)
+**OR
+summarize FCSNPrMeatF FCSNPrMeatO FCSNPrFish FCSNPrEggs FCSNVegOrg FCSNVegGre FCSNFruiOrg
+
+*** In cases where 0 consumption of main group automatically codes subgroup values as missing, recoding to 0 consumption
+
+foreach v in FCSNPrMeatO FCSNPrMeatF FCSNPrFish FCSNPrEggs FCSNVegOrg FCSNVegGre FCSNFruiOrg {
+    replace `v' = 0 if missing(`v')
+}
+
+*** Harmonize Data Quality Guidance measures
+*** Clean impossible values 
+
+foreach v in FCSNPrMeatF FCSNPrMeatO FCSNPrFish FCSNPrEggs FCSNVegOrg FCSNVegGre FCSNFruiOrg {
+    replace `v' = . if `v' < 0  | `v' >= 8
+}
+
+**OR
+
+recode FCSNPrMeatF FCSNPrMeatO FCSNPrFish FCSNPrEggs FCSNVegOrg FCSNVegGre FCSNFruiOrg (min/-1=.) (8/max=.)
+
+*** Flagging potential Data Quality issues. If any cases reflected here, refer to the Data Quality Guidance note page 37. This can be found on the VAM Ressource Centre
+
+* Reusable Yes/No value label
+
+label define yesno 0 "No" 1 "Yes"
+**OR to reuse already defined label use
+capture label define yesno 0 "No" 1 "Yes"
+
+* -----------------------------
+* Protein subgroup vs main group
+* -----------------------------
+gen byte FCSN_flag_protein = 0
+replace FCSN_flag_protein = 1 if ///
+    !missing(FCSNPrMeatF, FCSPr) & FCSNPrMeatF > FCSPr | ///
+    !missing(FCSNPrMeatO, FCSPr) & FCSNPrMeatO > FCSPr | ///
+    !missing(FCSNPrFish,  FCSPr) & FCSNPrFish  > FCSPr | ///
+    !missing(FCSNPrEggs,  FCSPr) & FCSNPrEggs  > FCSPr
+
+label variable FCSN_flag_protein ///
+"Subgroup exceeds main group. Flag issue to team leader during high frequency check. During cleaning, recode value to be capped at value for main group"
+label values FCSN_flag_protein yesno
+
+* -----------------------------
+* Vegetable subgroups vs main group
+* -----------------------------
+gen byte FCSN_flag_veg = 0
+replace FCSN_flag_veg = 1 if ///
+    !missing(FCSNVegOrg, FCSVeg) & FCSNVegOrg > FCSVeg | ///
+    !missing(FCSNVegGre, FCSVeg) & FCSNVegGre > FCSVeg
+
+label variable FCSN_flag_veg ///
+"Subgroup exceeds main group. Flag issue to team leader during high frequency check. During cleaning, recode value to be capped at value for main group"
+label values FCSN_flag_veg yesno
+
+* -----------------------------
+* Fruit subgroup vs main group
+* -----------------------------
+gen byte FCSN_flag_fruit = 0
+replace FCSN_flag_fruit = 1 if ///
+    !missing(FCSNFruiOrg, FCSFruit) & FCSNFruiOrg > FCSFruit
+
+label variable FCSN_flag_fruit ///
+"Subgroup exceeds main group. Flag issue to team leader during high frequency check. During cleaning, recode value to be capped at value for main group"
+label values FCSN_flag_fruit yesno
+
+*** Check flagged cases
+codebook FCSN_flag_protein FCSN_flag_veg FCSN_flag_fruit
+
+tabulate FCSN_flag_protein, missing
+tabulate FCSN_flag_veg, missing
+tabulate FCSN_flag_fruit, missing
+
+*** Calculate Vitamin A, protein and haem iron intake
+
+
+* ---------- Compute food-group sums ----------
+gen FGVitA    = FCSDairy + FCSNPrMeatO + FCSNPrEggs + FCSNVegOrg + FCSNVegGre + FCSNFruiOrg
+gen FGProtein = FCSPulse + FCSDairy + FCSNPrMeatF + FCSNPrMeatO + FCSNPrFish + FCSNPrEggs
+gen FGHIron   = FCSNPrMeatF + FCSNPrMeatO + FCSNPrFish
+
+* ---------- Vitamin A category ----------
+gen VitA_Cat = .
+replace VitA_Cat = 1 if FGVitA == 0
+replace VitA_Cat = 2 if FGVitA >= 1  & FGVitA <= 6
+replace VitA_Cat = 3 if FGVitA >= 7  & FGVitA <= 42
+label variable VitA_Cat "Household consumption of vitamin A"
+
+* ---------- Protein category ----------
+gen Protein_Cat = .
+replace Protein_Cat = 1 if FGProtein == 0
+replace Protein_Cat = 2 if FGProtein >= 1  & FGProtein <= 6
+replace Protein_Cat = 3 if FGProtein >= 7  & FGProtein <= 42
+label variable Protein_Cat "Household consumption of protein"
+
+* ---------- Haem iron category ----------
+gen Haem_iron_Cat = .
+replace Haem_iron_Cat = 1 if FGHIron == 0
+replace Haem_iron_Cat = 2 if FGHIron >= 1  & FGHIron <= 6
+replace Haem_iron_Cat = 3 if FGHIron >= 7  & FGHIron <= 42
+label variable Haem_iron_Cat "Household consumption of haem iron"
+
+* ---------- Reusable value labels ----------
+capture label define cons3_lbl ///
+    1 "0 time (never consumed)" ///
+    2 "1-6 times (consumed sometimes)" ///
+    3 "7 times or more (consumed at least daily)"
+
+label values VitA_Cat      cons3_lbl
+label values Protein_Cat   cons3_lbl
+label values Haem_iron_Cat cons3_lbl
+
+*** Check results
+codebook VitA_Cat Protein_Cat Haem_iron_Cat
+
+tabulate VitA_Cat, missing
+tabulate Protein_Cat, missing
+tabulate Haem_iron_Cat, missing
+
+****End Script****