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. 2013 Dec 5;26(3):87–93. doi: 10.1038/ijir.2013.41

Table 2. Characteristics of erectile dysfunction.

  Number (%)
Duration of ED symptom (years)
 <5 276 (56.9)
 5–9 125 (25.8)
 10–14 48 (9.9)
 ⩾15 12 (2.5)
 Don't know/No answer 24 (4.9)
   
Libido
 Low 21 (4.3)
 Medium 311 (64.1)
 High 153 (31.5)
   
Cause of ED
 Psychogenic 176 (36.3)
 Organic 309 (63.7)
   
Number of medication (times)
 4–10 124 (25.6)
 ⩾10 361 (74.4)
Severity of ED Before taking PDE5i After taking PDE5i
Mild (14–17a) 228 (47.0) 0 (0.0)
Moderate (10–13a) 224 (46.2) 0 (0.0)
Severe (⩽9a) 33 (6.8) 0 (0.0)

Abbreviations: ED, erectile dysfunction; PDE5i, phosphodiesterase type 5 inhibitor.

a

Korean version of International Index of Erectile Function (IIEF)-5 score.