Diabetes Risico Calculator

Categorie: Diabetes

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// Toggle height and weight input fields based on selected units document.getElementById('custom-calculator-unit').addEventListener('change', function () { const selectedUnit = this.value; const usSection = document.getElementById('custom-calculator-us-section'); const metricSection = document.getElementById('custom-calculator-metric-section'); if (selectedUnit === 'us') { usSection.style.display = 'block'; metricSection.style.display = 'none'; } else if (selectedUnit === 'metric') { usSection.style.display = 'none'; metricSection.style.display = 'block'; } }); // Validate fasting glucose when the user leaves the input field document.getElementById('custom-calculator-fasting-glucose').addEventListener('blur', function () { const fastingGlucose = parseFloat(this.value); const glucoseWarning = document.createElement('small'); const glucoseInput = this; // Remove any existing warnings const existingWarning = glucoseInput.parentElement.querySelector('.glucose-warning'); if (existingWarning) { existingWarning.remove(); } // Check glucose levels and add appropriate warnings if (fastingGlucose > 200) { glucoseWarning.textContent = 'Uw glucosewaarde is kritiek hoog - u heeft waarschijnlijk diabetes!'; glucoseWarning.className = 'glucose-warning'; glucoseInput.style.borderColor = 'red'; glucoseInput.parentElement.appendChild(glucoseWarning); } else if (fastingGlucose < 60 && fastingGlucose > 0) { glucoseWarning.textContent = 'Uw glucosewaarde is te laag - dit kan wijzen op hypoglykemie. Raadpleeg een arts.'; glucoseWarning.className = 'glucose-warning'; glucoseInput.style.borderColor = 'red'; glucoseInput.parentElement.appendChild(glucoseWarning); } else { glucoseInput.style.borderColor = ''; } }); // Add an event listener to the Calculate button document.getElementById('custom-calculator-calculate-button').addEventListener('click', function () { // Clear previous results const resultElement = document.getElementById('custom-calculator-risk'); resultElement.textContent = ''; // Clear the risk result document.getElementById('custom-calculator-results').style.display = 'none'; // Hide the results section const gender = document.getElementById('custom-calculator-gender').value; const age = parseFloat(document.getElementById('custom-calculator-age').value); const unit = document.getElementById('custom-calculator-unit').value; const familyHistory = document.getElementById('custom-calculator-family-history').value; const ethnicity = document.getElementById('custom-calculator-ethnicity').value; const fastingGlucose = parseFloat(document.getElementById('custom-calculator-fasting-glucose').value); const systolicBP = parseFloat(document.getElementById('custom-calculator-systolic-bp').value); const hdl = parseFloat(document.getElementById('custom-calculator-hdl').value); let height = 0; let weight = 0; let bmi = 0; // Retrieve height and weight based on selected units if (unit === 'us') { const heightFt = parseFloat(document.getElementById('custom-calculator-height-ft').value) || 0; const heightIn = parseFloat(document.getElementById('custom-calculator-height-in').value) || 0; height = heightFt * 12 + heightIn; // Convert height to inches weight = parseFloat(document.getElementById('custom-calculator-weight-us').value) || 0; // Weight in lbs if (weight < 44) { alert('Het gewicht moet minimaal 44 lbs (20 kg) zijn.'); return; } bmi = (weight / (height * height)) * 703; // BMI calculation for US units } else if (unit === 'metric') { height = parseFloat(document.getElementById('custom-calculator-height-metric').value) || 0; // Height in cm weight = parseFloat(document.getElementById('custom-calculator-weight-metric').value) || 0; // Weight in kg if (weight < 20) { alert('Het gewicht moet minimaal 20 kg zijn.'); return; } bmi = weight / ((height / 100) * (height / 100)); // BMI calculation for metric units } // Validation for age range if (age < 18 || age > 100) { alert('De leeftijd moet tussen 18 en 100 jaar liggen.'); return; } if ( !gender || isNaN(age) || height <= 0 || weight <= 0 || !familyHistory || !ethnicity || isNaN(fastingGlucose) || isNaN(systolicBP) || isNaN(hdl) ) { alert('Vul alle verplichte velden in met geldige gegevens!'); return; } // Risk Calculation Logic let riskFactor = 0; // Gender: Males generally have higher risk if (gender === 'Male') riskFactor += 1.5; // Family History: Strong predictor of risk if (familyHistory === 'Yes') riskFactor += 3; // Ethnicity: Certain ethnic groups are at higher risk if (ethnicity === 'Latin American') riskFactor += 2; // Age Factor: Risk increases with age riskFactor += (age - 18) * 0.2; // Fasting Glucose: High fasting glucose significantly increases risk if (fastingGlucose > 200) { riskFactor += 20; // Critical fasting glucose level } else if (fastingGlucose > 140) { riskFactor += 10; // Very high fasting glucose } else if (fastingGlucose > 100) { riskFactor += 5; // Pre-diabetic range } // Systolic Blood Pressure: Extremely weighted if (systolicBP > 180) { riskFactor += 30; // Critical hypertension } else if (systolicBP > 160) { riskFactor += 20; // Severe hypertension } else if (systolicBP > 140) { riskFactor += 10; // Moderate hypertension } else if (systolicBP > 120) { riskFactor += 5; // Mildly elevated } // HDL Cholesterol: Extremely weighted if (hdl < 20) { riskFactor += 50; // Critically low HDL } else if (hdl < 40) { riskFactor += 25; // Low HDL } else if (hdl > 60) { riskFactor -= 10; // Protective high HDL } // BMI Factor if (bmi >= 30) { riskFactor += 10; // Obesity significantly increases risk } else if (bmi >= 25) { riskFactor += 5; // Overweight increases risk moderately } else if (bmi < 18.5) { riskFactor += 1; // Underweight may slightly increase risk } // Cap risk at 100% const calculatedRisk = Math.min(100, riskFactor.toFixed(2)); // Display the result resultElement.textContent = `Uw 7,5-jarige diabetesrisico is ongeveer ${calculatedRisk}%.`; document.getElementById('custom-calculator-results').style.display = 'block'; // Show the results section }); // Add an event listener to the Reset button to clear the results document.getElementById('custom-calculator-clear-button').addEventListener('click', function () { document.getElementById('custom-calculator-results').style.display = 'none'; // Hide the results section document.getElementById('custom-calculator-risk').textContent = ''; // Clear the result text });