Table 3 Comparison of treatment parameters in office and self-injection programs

From: Intracavernosal prostaglandin E1 self vs office injection therapy in patients with erectile dysfunction

Variables Office injection (N=192) Self-injection (N=106) P-value*
Age (years)    <0.05
 Range 48–84 28–81  
 Mean 63.4 53.1  
Duration of treatment (months)    <0.05
 Range 1–12 2–12  
 Mean 6.4 9.7  
Dose of PGE 1 per injection (μg)    >0.05
 Range 2.5–20 2.5–40  
 Mean 15.2 16.6  
No. of injections per month    <0.05
 Range 4–8 4–15  
 Mean 4.6 6.5  
Total no. of injections    <0.05
 Range 12–57 12–98  
 Mean 35 68  
Amount of PGE 1 per month (μg)    <0.05
 Range 10–90 10–180  
 Mean 64.7 96.6  
Total amount of PGE 1 (μg)    <0.05
 Range 46–944 92–1920  
 Mean 396 936  
  1. *Unpaired t-test; significance level at P<0.05; percentages are calculated for a total of 192 for patients on office injection and a total of 106 for patients on self-injection programs.