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).