'Viagra effect' - influence of mass media on patient behavior.

INTRODUCTION: The effects of modern mass media and communication on the public health system are well known. So far however, these different influences of the media have not been objectively evaluated by physician-patient contacts. PATIENTS AND METHODS: In this study we asked urologists, primary care physicians and internists in private practices in Cologne and a rural area (Erftkreis, Germany) to quantify their weekly contacts with patients suffering from erectile dysfunction (ED). The poll was conducted by four separately mailed questionnaires whereas a double counting was avoided. Between the second and third mailing, an unbelievable public attention was seen following the FDA approval of Viagra in the United States. When Viagra was available in Germany, a fourth questionnaire was sent (4 months later) to all practitioners (n = 751). RESULTS: During this time span, there was a statistically (p