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GerdQ Calculator for Likelihood of Gastroesophageal Reflux Disease
Calculates the likelihood of GERD being present given responses to 6 symptom-related questions.[select name="Q1" value="Zero (0 points)=0|One (1 point)=1|Two to Three (2 points)=2|Four to Seven (3 points)=3"] <-- Days per week with burning feeling behind the breastbone (heartburn)?
[select name="Q2" value="Zero (0 points)=0|One (1 point)=1|Two to Three (2 points)=2|Four to Seven (3 points)=3"] <-- Days per week with stomach contents moving up to the throat or mouth (regurgitation)?
[select name="Q3" value="Zero (3 points)=3|One (2 points)=2|Two to Three (1 point)=1|Four to Seven (0 points)=0"] <-- Days per week with pain in the middle of the upper stomach area?
[select name="Q4" value="Zero (3 points)=3|One (2 points)=2|Two to Three (1 point)=1|Four to Seven (0 points)=0"] <-- Days per week with nausea?
[select name="Q5" value="Zero (0 points)=0|One (1 point)=1|Two to Three (2 points)=2|Four to Seven (3 points)=3"] <-- Days per week with trouble getting a good night's sleep because of heartburn or regurgitation?
[select name="Q6" value="Zero (0 points)=0|One (1 point)=1|Two to Three (2 points)=2|Four to Seven (3 points)=3"] <-- Days per week with the need for over-the-counter medicine for heartburn or regurgitation (such as Tums, Rolaids, Maalox, or other antacids), in addition to the medicine your doctor prescribed?
Score --> [calc value="score=(Q1)+(Q2)+(Q3)+(Q4)+(Q5)+(Q6)" memo="score"] out of 18. Interpretation --> [calc value="score=(Q1)+(Q2)+(Q3)+(Q4)+(Q5)+(Q6);score>10?'89%':score>7?'79%':score>2?'50%':'0%'" memo="interpretation"] likelihood of GERD.
[checkbox memo="display/hide references" name="footnotes" value=""][conditional field="footnotes" condition="(footnotes).isNot('')"]
references:
[link url="http://www.aafp.org/afp/2010/0515/p1278.html" memo="#1"] Am Fam Physician. 2010 May 15;81(10):1278-1280.
[link url="http://www.ncbi.nlm.nih.gov/pubmed/19737151" memo="#2"] Jones R, Junghard O, Dent J, et al. Development of the GerdQ, a tool for the diagnosis and management of gastrooesophageal reflux disease in primary care. Aliment Pharmacol Ther. 2009;30(10):1034
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GerdQ Calculator for Likelihood of Gastroesophageal Reflux Disease
Calculates the likelihood of GERD being present given responses to 6 symptom-related questions. <-- Days per week with burning feeling behind the breastbone (heartburn)?
<-- Days per week with stomach contents moving up to the throat or mouth (regurgitation)?
<-- Days per week with pain in the middle of the upper stomach area?
<-- Days per week with nausea?
<-- Days per week with trouble getting a good night's sleep because of heartburn or regurgitation?
<-- Days per week with the need for over-the-counter medicine for heartburn or regurgitation (such as Tums, Rolaids, Maalox, or other antacids), in addition to the medicine your doctor prescribed?
Score --> scorescore=(Q1)+(Q2)+(Q3)+(Q4)+(Q5)+(Q6) out of 18. Interpretation --> interpretationscore=(Q1)+(Q2)+(Q3)+(Q4)+(Q5)+(Q6);score>10?'89%':score>7?'79%':score>2?'50%':'0%' likelihood of GERD.
display/hide references

Result - Copy and paste this output: