There are different risk factors:

• Age (after 50 years);
• Gender (women);
• The people from Northern Europe and Scandinavian countries ;
• People with Forestier-Certonciny syndrome (inflammatory disease of unknown origin also called rhizomelic pseudopolyarthritis);
• Living in the North: Horton’s disease is more common in northern Europe.
• Asians and black people have much less Horton’s disease.