Update cholesterol calculation for unit conversion

openhealthalgorithms · Jul 4, 2019 · d5cb1df · d5cb1df
1 parent bddcce8
commit d5cb1df
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Showing 3 changed files with 19 additions and 10 deletions.
diff --git a/contents/guideline_hearts.json b/contents/guideline_hearts.json
@@ -1044,7 +1044,7 @@
                             "from": 8.0,
                             "unit": "mmol/L"
                         },
-                        "target": "< 90mg/dL (5 mmol/L)"
+                        "target": "< 195mg/dL (5 mmol/L)"
                     }],
                     "code": "CHOL-REFER"
                 },
@@ -1056,7 +1056,7 @@
                             "from": 31,
                             "unit": "%"
                         },
-                        "target": "<90mg/dL (5mmol/L)"
+                        "target": "<195mg/dL (5mmol/L)"
                     }],
                     "code": "CHOL-VERY-HIGH-CVD-RISK"
                 },
@@ -1074,7 +1074,7 @@
                             "to": 7.9,
                             "unit": "mmol/L"
                         },
-                        "target": "< 90mg/dL (5 mmol/L)"
+                        "target": "< 195mg/dL (5 mmol/L)"
                     }],
                     "code": "CHOL-ELEVATED-WITH-HIGH-CVD-RISK"
                 },
@@ -1087,7 +1087,7 @@
                             "to": 20,
                             "unit": "%"
                         },
-                        "target": "< 90mg/dL (5 mmol/L)"
+                        "target": "< 195mg/dL (5 mmol/L)"
                     }],
                     "code": "CHOL-MOD-CVD-RISK"
                 },
@@ -1100,7 +1100,7 @@
                             "to": 10,
                             "unit": "%"
                         },
-                        "target": "Below 90mg/dL (5 mmol/L)"
+                        "target": "Below 195mg/dL (5 mmol/L)"
                     }],
                     "code": "CHOL-LOW-CVD-RISK"
                 },
@@ -1112,14 +1112,14 @@
                                 "to": 1,
                                 "unit": "%"
                             },
-                            "target": "Below 90mg/dL (5 mmol/L)"
+                            "target": "Below 195mg/dL (5 mmol/L)"
                         },
                         {
                             "range": {
                                 "to": 8.0,
                                 "unit": "mmol/L"
                             },
-                            "target": "Below 90mg/dL (5 mmol/L)"
+                            "target": "Below 195mg/dL (5 mmol/L)"
                         }
                     ],
                     "code": "CHOL-NO-CVD-RISK"

diff --git a/pkg/engine/cholesterol.go b/pkg/engine/cholesterol.go
@@ -40,7 +40,7 @@ type CholesterolGuidelines []CholesterolGuideline
 
 // Process function
 func (b *CholesterolGuidelines) Process(cvd, age, chol float64, cholUnit, cholType string, medications map[string]bool) (Response, error) {
-	cholesterol := tools.CalculateMMOLValue(chol, cholUnit)
+	cholesterol := tools.CalculateCholMMOLValue(chol, cholUnit)
 
 	code := ""
 	value := fmt.Sprintf("%.1f%s", chol, cholUnit)
@@ -81,10 +81,10 @@ func (b *CholesterolGuidelines) Process(cvd, age, chol float64, cholUnit, cholTy
 
 			if c.Range != nil {
 				if c.Range.From != nil {
-					cholFrom = tools.CalculateMMOLValue(*c.Range.From, *c.Range.Unit)
+					cholFrom = tools.CalculateCholMMOLValue(*c.Range.From, *c.Range.Unit)
 				}
 				if c.Range.To != nil {
-					cholTo = tools.CalculateMMOLValue(*c.Range.To, *c.Range.Unit)
+					cholTo = tools.CalculateCholMMOLValue(*c.Range.To, *c.Range.Unit)
 				}
 			}
 

diff --git a/pkg/tools/calculate.go b/pkg/tools/calculate.go
@@ -66,6 +66,15 @@ func CalculateMMOLValue(value float64, unit string) float64 {
 	return value
 }
 
+// CalculateCholMMOLValue to convert value into mmol/L
+func CalculateCholMMOLValue(value float64, unit string) float64 {
+	if strings.ToLower(unit) == "mg/dl" {
+		return value / 38.67
+	}
+
+	return value
+}
+
 // CalculateLength to convert units
 func CalculateLength(value float64, unit, toUnit string) float64 {
 	result := value