Compartment involvement
Main pain scores were calculated for all main compartments solitary.
This implies that for example only options of A1/2/3,B0,C0,Fx would be
assigned to compartment A. Combinations were also possible, for example
A1B2C0, would result in the group AB and so on. The assignment to the
main compartments was irrespective of the involvement of F. Solitary
mean pain calculations for the compartments F (FB, FA, FU and FI). This
was performed to present the pain scores with the least bias of other
compartments. To present the overlay of certain compartments we used
euler diagrams (12).