Table 1: Risk factors for delayed union.

   Union < 3months  Union > 3months  p-value
 Diabetes  yes  6  3  0.05
 no  147  15
   
 Cysts  yes  12  6  0.005
 no  140  12
 
 Treatment delay >2 weeks  Yes  10  5  0.003
 No  143  13