Your responses suggest multiple significant risk factors. It is highly recommended to consult a healthcare provider for a comprehensive evaluation.

• Schedule an appointment with your doctor promptly to discuss your risk.
• A bone density test (DXA scan) is likely necessary.
• Your doctor may discuss preventative treatments or medications.

`; } // --- Return all calculated data --- return { score, category, recommendations, cardClass, inputs: { age, gender, bmi: bmi.toFixed(1), fracture, parentFracture, arthritis, secondaryOsteo, smoker, alcohol, steroids } }; }; /** * Displays the calculated results in the UI. */ const displayResults = () => { const resultData = calculateRisk(); document.getElementById('results-placeholder').classList.add('hidden'); document.getElementById('results-content').classList.remove('hidden'); const summaryEl = document.getElementById('result-summary'); summaryEl.innerHTML = `

Risk Profile

`; const scoreEl = document.getElementById('result-score'); scoreEl.innerHTML = ``; const recommendationsEl = document.getElementById('result-recommendations'); recommendationsEl.innerHTML = `

General Recommendations

`; const pdfContentEl = document.getElementById('pdf-content').querySelector('.bg-gray-50'); pdfContentEl.classList.remove('low-risk', 'moderate-risk', 'high-risk'); pdfContentEl.classList.add('result-card', resultData.cardClass); }; /** * Generates and downloads a PDF of the results, scaled to fit an A4 page. */ const generatePdf = () => { const { jsPDF } = window.jspdf; const pdfContent = document.getElementById('pdf-content'); const originalBtnText = downloadPdfBtn.innerHTML; downloadPdfBtn.disabled = true; downloadPdfBtn.innerHTML = 'Generating...'; pdfErrorMsg.classList.add('hidden'); html2canvas(pdfContent, { scale: 2, // Use higher scale for better resolution useCORS: true, backgroundColor: '#ffffff' }).then(canvas => { const imgData = canvas.toDataURL('image/png'); const canvasWidth = canvas.width; const canvasHeight = canvas.height; // Create a new PDF in A4 portrait format const pdf = new jsPDF({ orientation: 'portrait', unit: 'pt', format: 'a4' }); // Get PDF page dimensions const pdfWidth = pdf.internal.pageSize.getWidth(); const pdfHeight = pdf.internal.pageSize.getHeight(); // Define padding const padding = 40; // 40pt padding on each side // Calculate the available width and height inside padding const usableWidth = pdfWidth - (padding * 2); const usableHeight = pdfHeight - (padding * 2); // Calculate aspect ratios const canvasAspectRatio = canvasWidth / canvasHeight; const usableAreaAspectRatio = usableWidth / usableHeight; let finalImgWidth, finalImgHeight; // Determine final image dimensions to fit within the usable area if (canvasAspectRatio > usableAreaAspectRatio) { // Image is wider than the usable area finalImgWidth = usableWidth; finalImgHeight = finalImgWidth / canvasAspectRatio; } else { // Image is taller than or has the same aspect ratio as the usable area finalImgHeight = usableHeight; finalImgWidth = finalImgHeight * canvasAspectRatio; } // Center the image on the page const x = (pdfWidth - finalImgWidth) / 2; const y = (pdfHeight - finalImgHeight) / 2; // Add the image to the PDF pdf.addImage(imgData, 'PNG', x, y, finalImgWidth, finalImgHeight); pdf.save('Osteoporosis-Risk-Assessment.pdf'); // Restore button state downloadPdfBtn.disabled = false; downloadPdfBtn.innerHTML = originalBtnText; }).catch(err => { console.error("Error generating PDF:", err); // Restore button state and show error message downloadPdfBtn.disabled = false; downloadPdfBtn.innerHTML = originalBtnText; pdfErrorMsg.textContent = 'Sorry, there was an error creating the PDF.'; pdfErrorMsg.classList.remove('hidden'); }); }; // --- Event Listeners --- tabs.forEach((tab, index) => { tab.addEventListener('click', () => { if (index === (tabs.length - 1) && document.getElementById('results-content').classList.contains('hidden')) { return; } currentTab = index; updateUI(); }); }); nextBtn.addEventListener('click', () => { if (validateCurrentTab() && currentTab < tabs.length - 2) { currentTab++; updateUI(); } }); prevBtn.addEventListener('click', () => { if (currentTab > 0) { currentTab--; updateUI(); } }); calcBtn.addEventListener('click', () => { if (validateCurrentTab()) { displayResults(); currentTab++; updateUI(); } }); unitSelect.addEventListener('change', handleUnitSwitch); downloadPdfBtn.addEventListener('click', generatePdf); // --- Initial Setup --- updateUI(); handleUnitSwitch(); });