1. What is the GERD-Q Score?

The GERD-Q (Gastroesophageal Reflux Disease Questionnaire) is a validated diagnostic tool that helps identify patients with GERD based on symptom frequency. It consists of 6 questions about typical GERD symptoms and medication use.

2. How Does the Calculator Work?

The calculator uses the GERD-Q equation:

Where each symptom is scored based on frequency:

• 0 days/week = 0 points
• 1 day/week = 1 point
• 2-3 days/week = 2 points
• 4-7 days/week = 3 points

Interpretation:

• ≥8 points: High likelihood of GERD
• 3-7 points: Possible GERD
• 0-2 points: Unlikely to have GERD

3. Importance of GERD-Q Score

Details: The GERD-Q score helps clinicians diagnose GERD without invasive testing, with sensitivity of 65% and specificity of 71% for scores ≥8.

4. Using the Calculator

Tips: Select the frequency for each symptom based on your experience over the past week. Be honest about medication use for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a positive GERD-Q score?
A: Scores ≥8 suggest GERD is likely, while scores 3-7 may indicate possible GERD needing further evaluation.

Q2: How accurate is the GERD-Q score?
A: It has moderate accuracy (65-71%) but should be combined with clinical judgment and possibly endoscopic evaluation.

Q3: Can I use this for children?
A: No, the GERD-Q is validated only for adults (≥18 years).

Q4: What if my score is borderline (6-7)?
A: Borderline scores may warrant a trial of PPI therapy or further diagnostic testing.

Q5: Does this replace endoscopy?
A: No, endoscopy remains the gold standard for diagnosing GERD complications like esophagitis or Barrett's esophagus.