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Calcimator

GERD Severity Score Calculator

Score gastroesophageal reflux disease severity using the GERD-Q questionnaire. Evaluates symptom frequency, daily-life impact, and suggests treatment approach.

Inputs

Results

GERD-Q Score (0–18)

6

Severity (0–3)

1

GERD Likely (0=No, 1=Yes)0
Daily Life Impact Score0
Significant Impact (0/1)0
Positive Symptom Score0
Treatment Level (0–3)1
How to Use This Calculator
  1. Score Heartburn and Regurgitation frequency (days/week, 0–3 scale).
  2. Score Sleep Disturbance, OTC Medication Use, Epigastric Pain, and Nausea (each 0–3).
  3. Review the GERD-Q Score on a 0–18 scale and the Severity classification.
  4. Check Diagnosis Likelihood — a score of 8 or higher suggests probable GERD.
  5. Use Daily Life Impact Score to quantify symptom burden for clinical documentation.

What each input means

Heartburn Frequency
Days with heartburn in the past week.
Regurgitation Frequency
Days with acid or food coming back up in the past week.
Sleep Disturbance
Nights of sleep disturbed by heartburn/regurgitation.
OTC Medication Use
Days taking over-the-counter meds for heartburn.
Epigastric Pain
Central upper abdominal pain frequency. Higher values suggest non-GERD causes (reverse-scored).
Nausea
Nausea frequency. Higher values suggest non-GERD causes (reverse-scored).

What each result means

GERD-Q Score (0–18)
Total GERD-Q score. ≥8 suggests GERD diagnosis.
Severity (0–3)
0 = minimal, 1 = mild, 2 = moderate, 3 = severe.
GERD Likely (0=No, 1=Yes)
Score ≥8 suggests GERD diagnosis with ~65% sensitivity.
Daily Life Impact Score
Sleep disturbance + OTC use. ≥3 indicates significant impact.
Significant Impact (0/1)
1 = impact score ≥3, suggesting need for daily PPI therapy.
Positive Symptom Score
Sum of heartburn, regurgitation, sleep, and OTC medication scores.
Treatment Level (0–3)
0 = lifestyle, 1 = lifestyle + antacids, 2 = daily PPI, 3 = PPI + specialist referral.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Heartburn Frequency = 0, Regurgitation Frequency = 0, Sleep Disturbance = 0, OTC Medication Use = 0 = 6 input(s) provided
  2. Calculate GERD-Q Score
    GERD-Q Score = positiveScore + negativeScore
    6 = 6
  3. Calculate Severity
    1 = 1
  4. Calculate GERD Likely
    0 = 0
  5. Calculate Daily Life Impact Score
    Daily Life Impact Score
    0 = 0

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