International Index of Erectile Function Questionnaire

1. Indications
   1. Erectile Dysfunction Evaluation
2. Questions: Based on last 6 months (each answer assigned 1-5 score)
   1. How do you rate your confidence that you could get and keep an Erection?
      1. Score 1: Very Low
      2. Score 2: Low
      3. Score 3: Moderate
      4. Score 4: High
      5. Score 5: Very High
   2. When you had Erections with sexual stimulation, how often were your Erections hard enough for penetration?
      1. Score 1: Never or almost never
      2. Score 2: A few times
      3. Score 3: Sometimes (about half the time)
      4. Score 4: Most times
      5. Score 5: Always or almost always
   3. During sexual intercourse, how often were you able to maintain your Erection after you had penetrated or entered your partner?
      1. Score 1: Never or almost never
      2. Score 2: A few times
      3. Score 3: Sometimes (about half the time)
      4. Score 4: Most times
      5. Score 5: Always or almost always
   4. During sexual intercourse, how difficult was it maintain your Erection to completion of intercourse?
      1. Score 1: Extremely difficult
      2. Score 2: Very difficult
      3. Score 3: Difficult
      4. Score 4: Slightly difficult
      5. Score 5: Not difficult
   5. When you attempted sexual intercourse, how often was it satisfactory for you?
      1. Score 1: Never or almost never
      2. Score 2: A few times
      3. Score 3: Sometimes (about half the time)
      4. Score 4: Most times
      5. Score 5: Always or almost always
3. Interpretation: Based on total sum of scores from 5 questions above
   1. Scores 22 to 25: Normal
   2. Scores 17 to 21: Mild
   3. Scores 12 to 16: Mild to moderate
   4. Scores 8 to 11: Moderate
   5. Scores 5 to 7: Severe
4. References
   1. Rosen (1999) Int J Impot Res 11: 319-26