Made BMI custom, Fixes for nutritional calculations and followup update

CDC-HIS · Jan 31, 2024 · bc4fd01 · bc4fd01
1 parent db67342
commit bc4fd01
Showing 4 changed files with 31 additions and 17 deletions.
diff --git a/src/custom-expressions.ts b/src/custom-expressions.ts
@@ -97,38 +97,50 @@ export function CalcViralLoadStatus(viralLoadCount: number) {
   return viralLoadCount ? resultViralLoadStatus : null;
 }
 
-export function CalcAdultNutritionalStatus(bmi: number) {
+export function CalcBMI(height: number, weight: number) {
+  let resultBMI;
+  let heightInMeters = height / 100;
+  if(height && weight) {
+    resultBMI = weight / (heightInMeters * heightInMeters);
+    resultBMI = resultBMI.toFixed(2);
+  }
+  return height && weight ? resultBMI : null;
+}
+
+export function CalcAdultNutritionalStatus(height: number, weight: number) {
+  let resultBMI = CalcBMI(height, weight);
   let resultAdultNutritionalStatus: string;
-  if(bmi) {
-    if (bmi >= 18.5 && bmi <= 24.99) {
+  if(resultBMI) {
+    if (resultBMI >= 18.5 && resultBMI <= 24.99) {
       resultAdultNutritionalStatus = "1115AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
-    } else if (bmi >= 17 && bmi <= 18.49) {
+    } else if (resultBMI >= 17 && resultBMI <= 18.49) {
       resultAdultNutritionalStatus = "134723AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
-    } else if (bmi >= 16 && bmi <= 16.99) {
+    } else if (resultBMI >= 16 && resultBMI <= 16.99) {
       resultAdultNutritionalStatus = "134722AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
-    } else if (bmi < 16) {
+    } else if (resultBMI < 16) {
       resultAdultNutritionalStatus = "126598AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
-    } else if (bmi >= 25 && bmi <= 29.99) {
+    } else if (resultBMI >= 25 && resultBMI <= 29.99) {
       resultAdultNutritionalStatus = "114413AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
     } else {
       resultAdultNutritionalStatus = "132626AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
     }
   }
-  return bmi ? resultAdultNutritionalStatus : null;
+  return resultBMI ? resultAdultNutritionalStatus : null;
 }
 
-export function CalcNutritionalScreening(bmi: number) {
+export function CalcNutritionalScreening(height: number, weight: number) {
   let resultNutritionalScreening: string;
-  if(bmi) {
-    if (bmi >= 18.5 && bmi <= 24.99) {
+  let resultBMI = CalcBMI(height, weight);
+  if(resultBMI) {
+    if (resultBMI >= 18.5 && resultBMI <= 24.99) {
       resultNutritionalScreening = "1115AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
-    } else if (bmi >= 17 && bmi <= 29.99) {
+    } else if (resultBMI <= 16 && resultBMI <= 18.49) {
       resultNutritionalScreening = "123815AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
     } else {
       resultNutritionalScreening = "114413AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
     }
   }
-  return bmi ? resultNutritionalScreening : null;
+  return resultBMI ? resultNutritionalScreening : null;
 }
 
 export async function getGender(patient) {

diff --git a/src/forms/followup/followup.json b/src/forms/followup/followup.json
@@ -535,7 +535,7 @@
 							"type": "obs",
 							"questionOptions": {
 								"calculate": {
-									"calculateExpression": "Math.round(calcBMI('height','weight'))"
+									"calculateExpression": "CustomBMICalc('height','weight'))"
 								},
 								"rendering": "number",
 								"concept": "1cc8fe7f-fb70-49d8-9065-73654d852187",
@@ -687,7 +687,7 @@
 								"rendering": "radio",
 								"concept": "ae4d72a4-ccf5-49ff-b395-6687c534b1a2",
 								"calculate": {
-									"calculateExpression": "CustomAdultNutritionalStatusCalc('bmi')"
+									"calculateExpression": "CustomAdultNutritionalStatusCalc('height','weight')"
 								},
 								"answers": [
 									{
@@ -1225,7 +1225,7 @@
 								"rendering": "radio",
 								"concept": "2c5b553b-58f8-4462-b14e-0a6a6628a790",
 								"calculate": {
-									"calculateExpression": "CustomNutritionalScreeningCalc('bmi')"
+									"calculateExpression": "CustomNutritionalScreeningCalc('height','weight')"
 								},
 								"answers": [
 									{

diff --git a/src/forms/intake-b/intake-b.json b/src/forms/intake-b/intake-b.json
@@ -1533,7 +1533,7 @@
 							"type": "obs",
 							"questionOptions": {
 								"calculate": {
-									"calculateExpression": "Math.round(calcBMI('height','weight'))"
+									"calculateExpression": "CustomBMICalc('height','weight'))"
 								},
 								"rendering": "number",
 								"concept": "1cc8fe7f-fb70-49d8-9065-73654d852187",

diff --git a/src/index.ts b/src/index.ts
@@ -32,6 +32,7 @@ import {
   CalcViralLoadStatus,
   CalcAdultNutritionalStatus,
   CalcNutritionalScreening,
+  CalcBMI,
   getGender,
   getIdentifier,
 } from "./custom-expressions";
@@ -57,6 +58,7 @@ export function startupApp() {
   registerExpressionHelper("CustomViralLoadStatusCalc", CalcViralLoadStatus);
   registerExpressionHelper("CustomAdultNutritionalStatusCalc", CalcAdultNutritionalStatus);
   registerExpressionHelper("CustomNutritionalScreeningCalc", CalcNutritionalScreening);
+  registerExpressionHelper("CustomBMICalc", CalcBMI);
   registerExpressionHelper("getGender", getGender);
   registerExpressionHelper("getIdentifier", getIdentifier);