Cardiovascular Disease (CVD) Risk Calculator
Use this calculator to estimate your illustrative 10-year risk of developing cardiovascular disease based on several common risk factors. Please note: This is a simplified, educational tool and not a substitute for professional medical advice or a clinically validated risk assessment. Always consult with a healthcare provider for accurate risk assessment and personalized recommendations.
.cv-risk-calculator-container {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f9f9f9;
padding: 25px;
border-radius: 10px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
max-width: 700px;
margin: 30px auto;
border: 1px solid #e0e0e0;
}
.cv-risk-calculator-container h2 {
color: #2c3e50;
text-align: center;
margin-bottom: 20px;
font-size: 1.8em;
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.cv-risk-calculator-container p {
color: #555;
line-height: 1.6;
margin-bottom: 20px;
text-align: justify;
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.calculator-form .form-group {
margin-bottom: 18px;
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border-radius: 6px;
font-size: 1em;
box-sizing: border-box;
transition: border-color 0.3s ease;
-webkit-appearance: none; /* Remove default styling for select */
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appearance: none;
background-color: #fff;
}
.calculator-form input[type="number"]:focus,
.calculator-form select:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
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.calculator-form select {
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background-repeat: no-repeat;
background-position: right 12px top 50%;
background-size: 12px auto;
padding-right: 30px; /* Make space for the arrow */
}
.calculate-button {
display: block;
width: 100%;
padding: 14px 20px;
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color: white;
border: none;
border-radius: 6px;
font-size: 1.1em;
font-weight: bold;
cursor: pointer;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 25px;
}
.calculate-button:hover {
background-color: #0056b3;
transform: translateY(-1px);
}
.calculate-button:active {
transform: translateY(0);
}
.result-container {
margin-top: 30px;
padding: 20px;
background-color: #e9f7ef;
border: 1px solid #d4edda;
border-radius: 8px;
color: #155724;
font-size: 1.1em;
text-align: center;
font-weight: bold;
min-height: 50px;
display: flex;
align-items: center;
justify-content: center;
}
.result-container.error {
background-color: #f8d7da;
border-color: #f5c6cb;
color: #721c24;
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@media (max-width: 600px) {
.cv-risk-calculator-container {
padding: 15px;
margin: 20px auto;
}
.cv-risk-calculator-container h2 {
font-size: 1.5em;
}
.calculator-form label,
.calculator-form input[type="number"],
.calculator-form select,
.calculate-button {
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}
.result-container {
font-size: 1em;
padding: 15px;
}
}
function calculateCVRisk() {
var age = parseFloat(document.getElementById("age").value);
var sex = document.getElementById("sex").value;
var systolicBP = parseFloat(document.getElementById("systolicBP").value);
var totalCholesterol = parseFloat(document.getElementById("totalCholesterol").value);
var hdlCholesterol = parseFloat(document.getElementById("hdlCholesterol").value);
var smokingStatus = document.getElementById("smokingStatus").value;
var diabetesStatus = document.getElementById("diabetesStatus").value;
var resultDiv = document.getElementById("result");
resultDiv.className = "result-container"; // Reset class
// Input validation
if (isNaN(age) || age 100) {
resultDiv.innerHTML = "Please enter a valid age between 18 and 100.";
resultDiv.classList.add("error");
return;
}
if (isNaN(systolicBP) || systolicBP 200) {
resultDiv.innerHTML = "Please enter a valid Systolic BP between 70 and 200 mmHg.";
resultDiv.classList.add("error");
return;
}
if (isNaN(totalCholesterol) || totalCholesterol 400) {
resultDiv.innerHTML = "Please enter valid Total Cholesterol between 100 and 400 mg/dL.";
resultDiv.classList.add("error");
return;
}
if (isNaN(hdlCholesterol) || hdlCholesterol 100) {
resultDiv.innerHTML = "Please enter valid HDL Cholesterol between 20 and 100 mg/dL.";
resultDiv.classList.add("error");
return;
}
var riskScore = 5; // Base risk percentage
// Age factor
if (age = 50 && age = 60 && age = 70) {
riskScore += 8;
}
// Sex factor
if (sex === "male") {
riskScore += 1;
}
// Systolic BP factor
if (systolicBP >= 120 && systolicBP = 130 && systolicBP = 140 && systolicBP = 160) {
riskScore += 6;
} else if (systolicBP = 150 && totalCholesterol = 200 && totalCholesterol = 240) {
riskScore += 4;
} else if (totalCholesterol < 150) {
riskScore -= 1;
}
// HDL Cholesterol factor
if (hdlCholesterol = 60) {
riskScore -= 1;
}
// Smoking Status factor
if (smokingStatus === "yes") {
riskScore += 5;
}
// Diabetes Status factor
if (diabetesStatus === "yes") {
riskScore += 7;
}
// Cap the risk score between 0 and 100
riskScore = Math.max(0, Math.min(100, riskScore));
resultDiv.innerHTML = "Your estimated 10-year CVD risk is:
" + riskScore.toFixed(1) + "%";
}
Understanding Cardiovascular Disease (CVD) Risk
Cardiovascular disease (CVD) refers to a group of disorders of the heart and blood vessels, including coronary heart disease, stroke, heart failure, and peripheral artery disease. It is a leading cause of death globally, but many cases are preventable by addressing modifiable risk factors.
Why Assess Your CVD Risk?
Assessing your risk for CVD is a crucial step in preventive healthcare. By understanding your individual risk profile, you and your healthcare provider can make informed decisions about lifestyle changes, screenings, and potential medical interventions to reduce your chances of developing these serious conditions. Early identification of risk factors allows for proactive management, which can significantly improve long-term health outcomes.
Key Risk Factors Considered (Simplified for this Calculator):
- Age: The risk of CVD generally increases with age.
- Sex: Men typically have a higher risk of CVD at younger ages than women, though women's risk increases significantly after menopause.
- Systolic Blood Pressure: High blood pressure (hypertension) is a major risk factor, straining the heart and damaging blood vessels.
- Total Cholesterol: High levels of total cholesterol, particularly LDL ("bad") cholesterol, contribute to plaque buildup in arteries (atherosclerosis).
- HDL Cholesterol: High-density lipoprotein (HDL) cholesterol is often called "good" cholesterol because it helps remove excess cholesterol from the arteries. Lower HDL levels are associated with higher risk.
- Smoking Status: Smoking severely damages blood vessels, increases blood pressure, and reduces oxygen to the heart, dramatically increasing CVD risk.
- Diabetes Status: Diabetes significantly increases the risk of CVD by damaging blood vessels and nerves that control the heart.
Important Disclaimer:
This calculator provides a simplified, illustrative estimate of CVD risk based on common factors. It is designed for educational purposes only and does not use a clinically validated algorithm (such as Framingham Risk Score or ASCVD Risk Estimator). It should NOT be used for self-diagnosis or to replace professional medical advice. For an accurate and personalized assessment of your cardiovascular risk and appropriate medical guidance, please consult with a qualified healthcare professional.
Examples of CVD Risk Calculation:
Example 1: A Relatively Low-Risk Individual
- Age: 45 years
- Sex: Female
- Systolic BP: 115 mmHg
- Total Cholesterol: 170 mg/dL
- HDL Cholesterol: 65 mg/dL
- Smoking Status: No
- Diabetes Status: No
Calculation Breakdown (Illustrative):
- Base Risk: 5%
- Age (45): +0%
- Sex (Female): +0%
- Systolic BP (115): -1%
- Total Cholesterol (170): +0%
- HDL Cholesterol (65): -1%
- Smoking (No): +0%
- Diabetes (No): +0%
Estimated Risk: 5% + 0% + 0% – 1% + 0% – 1% + 0% + 0% = 3%
Example 2: An Individual with Moderate Risk Factors
- Age: 62 years
- Sex: Male
- Systolic BP: 145 mmHg
- Total Cholesterol: 220 mg/dL
- HDL Cholesterol: 38 mg/dL
- Smoking Status: Yes
- Diabetes Status: No
Calculation Breakdown (Illustrative):
- Base Risk: 5%
- Age (62): +5%
- Sex (Male): +1%
- Systolic BP (145): +4%
- Total Cholesterol (220): +2%
- HDL Cholesterol (38): +3%
- Smoking (Yes): +5%
- Diabetes (No): +0%
Estimated Risk: 5% + 5% + 1% + 4% + 2% + 3% + 5% + 0% = 25%