Table 1.
Characteristics of Internet Patients Receiving Sildenafil Prescriptions
| Category | Number | Percent | Clinic Chart Documentation |
| All Patients | 2100 | 100 | X |
| Male | 2097 | 99.90 | |
| Female | 3 | 0.10 | |
| Place of Residence: | |||
| U. S. (46 states) | 1167 | 76 | X |
| Non-U.S. (8 countries) | 933 | 24.0 | |
| Age (mean +/- SD) | 49.4 +/- 5.3 | X | |
| Height (mean +/- SD) | 177.8 +/- 11.2 | X | |
| Weight (mean +/- SD) | 82.4 +/- 15.6 | X | |
| Diagnosed with: | |||
| Atherosclerosis | 157 | 7.50 | |
| Endocrine disorders | 51 | 2.40 | |
| Diabetes | 268 | 12.80 | |
| Stroke | 1 | 0.04 | X |
| Prostate cancer | 18 | 0.50 | |
| Enlarged prostate | 152 | 7.20 | |
| Kidney disease/renal failure | 8 | 0.40 | |
| On renal dialysis | 1 | 0.04 | |
| Hypertension | 384 | 18.30 | X |
| Spinal cord injury | 1 | 0.04 | |
| Cirrhosis of liver | 2 | 0.10 | |
| Hepatitis | 1 | 0.04 | |
| Thyroid disease | 1 | 0.04 | |
| Anxiety | 10 | 0.50 | |
| Depression | 1 | 0.04 | |
| Currently taking: | |||
| Nitroglycerine | 0 | ||
| Erythromycin | 0 | ||
| Ketoconazole | 0 | ||
| Itraconazole | 0 | ||
| Cimetidine | 0 | ||
| Mibefradil | 0 | ||
| Being treated for other medical conditions | 46 | 2.20 | |
| Allergies (various) | 61 | 2.90 | |
| Past surgical history (various) | 179 | 8.50 | |
| Regular exercise | 1806 | 86.00 | |
| Both mother and father alive | 884 | 42.10 | |
| Alcoholic beverage consumption: | |||
| Never | 968 | 45.70 | |
| Rarely | 352 | 16.80 | |
| Social | 652 | 31.00 | |
| Moderate | 124 | 5.90 | |
| Heavy | 12 | .060 | |
| Smoking reported | 673 | 32.10 | |
| Packs/Day | 1.5 +/-0.7 | ||
| Sex life described as: | |||
| Good | 149 | 7.10 | |
| Poor | 1951 | 92.40 | |
| Time since last sexual activity | 37 +/-9.4 days | ||
| Impotence occurred: | |||
| Suddenly | 117 | 5.60 | |
| Gradually | 1983 | 94.40 | |
| Ever not impotent | 1827 | 87.00 | |
| Impotence involves inability to: | |||
| Maintain an erection | 2037 | 97.00 | |
| Get an erection | 63 | 3.00 | |
| Impotence described as: | |||
| Penis not at all firm | 63 | 3.00 | |
| Penis slightly firm, not self supporting | 1267 | 60.30 | |
| Firmness decreased but sufficient for sex | 770 | 36.70 | |
| Previous treatment for erectile dysfunction: | |||
| Medical | 26 | 1.20 | |
| Surgical | 25 | 1.20 | |
| Injectable | 34 | 1.60 | |
| Psychological | 1009 | 48.00 | |
| Not specified | 286 | 13.60 | |
| Satisfied with previous treatment | 15 | 0.70 | |
| Have following conditions: | |||
| Multiple myeloma | 0 | ||
| Sickle cell anemia | 0 | ||
| Peyronie's disease | 0 | ||
| Leukemia | 0 | ||
| Bleeding disorders | 0 | ||
| Active peptic ulcer | 0 | ||
| Retinitis pigmentosa | 0 | ||
| Pacemaker in use | 0 | ||
| Angina pectoris | 0 | ||
| Chest pain (past or present) | 0 | ||
| Shortness of breath | 0 |