ABSTRACT
<p><b>Purpose: </b>This study was conducted to evaluate our diagnostic and therapeutic system using patient checklists, scoring sheet and standardized treatment regimen for the patients with subacute/chronic cough without abnormal chest X-ray findings.</p><p><b>Methods: </b>Based on our clinical system, we had diagnosed and treated 120 patients with subacute/chronic cough without abnormal chest X-ray findings. We also examined 83 cases that were available for evaluation of therapeutic response at the time of second visit.</p><p><b>Results: </b>The mean patient age was 48.4 years (range 21 to 74 years). Thirty-three of the patients were men, 50 were women. Forty-nine cases (59.0%) were diagnosed as "Allergic cough" (such as bronchial asthma, cough-variant asthma, or atopic cough). At the time of the second visit, 67 (80.7%) patients exhibited significant or moderate improvement of their symptoms (49 cases; significant improvement, 18 cases; moderate improvement).</p><p><b>Conclusion: </b>Our clinical system may be useful for patients with subacute/chronic cough. Further clinical investigation is needed.</p>