Using the allocation sequence, which is generated based on the block method of volume 4, participants are randomly assigned to two groups. This method was used because people enter the study over time and in order to be assigned to the groups in proportion to the accident over time, and also by assigning one person to one group, it is not possible to guess which group the next person will belong to.
After generating the assignment sequence, each sequence letter (A, B) corresponds to a group. As participants enter the study from different centers, the central concealment method is used. The assignment sequence is placed in the hands of someone outside the research team. For each eligible person, after registering and entering the study, the desired person will be contacted and thus entered in a central list and will receive an identification code and assigned to the desired group.
• 1, 4, 1, Group B
• 1, 4, 2, Group B
• 1, 4, 3, Group A
• 1, 4, 4, Group A
• 2, 4, 1, Group B
• 2, 4, 2, Group A
• 2, 4, 3, Group A
• 2, 4, 4, Group B
• 3, 4, 1, Group A
• 3, 4, 2, Group B
• 3, 4, 3, Group B
• 3, 4, 4, Group A
• 4, 4, 1, Group A
• 4, 4, 2, Group B
• 4, 4, 3, Group B
• 4, 4, 4, Group A
• 5, 4, 1, Group B
• 5, 4, 2, Group B
• 5, 4, 3, Group A
• 5, 4, 4, Group A
• 6, 4, 1, Group A
• 6, 4, 2, Group B
• 6, 4, 3, Group B
• 6, 4, 4, Group A
• 7, 4, 1, Group B
• 7, 4, 2, Group A
• 7, 4, 3, Group A
• 7, 4, 4, Group B
• 8, 4, 1, Group B
• 8, 4, 2, Group B
• 8, 4, 3, Group A
• 8, 4, 4, Group A
• 9, 4, 1, Group B
• 9, 4, 2, Group B
• 9, 4, 3, Group A
• 9, 4, 4, Group A
• 10, 4, 1, Group B
• 10, 4, 2, Group A
• 10, 4, 3, Group B
• 10, 4, 4, Group A
• 11, 4, 1, Group B
• 11, 4, 2, Group A
• 11, 4, 3, Group B
• 11, 4, 4, Group A
• 12, 4, 1, Group B
• 12, 4, 2, Group A
• 12, 4, 3, Group A
• 12, 4, 4, Group B
• 13, 4, 1, Group A
• 13, 4, 2, Group B
• 13, 4, 3, Group A
• 13, 4, 4, Group B
• 14, 4, 1, Group A
• 14, 4, 2, Group A
• 14, 4, 3, Group B
• 14, 4, 4, Group B
• 15, 4, 1, Group A
• 15, 4, 2, Group A
• 15, 4, 3, Group B
• 15, 4, 4, Group B
• 16, 4, 1, Group B
• 16, 4, 2, Group A
• 16, 4, 3, Group B
• 16, 4, 4, Group A
• 17, 4, 1, Group B
• 17, 4, 2, Group A
• 17, 4, 3, Group A
• 17, 4, 4, Group B
• 18, 4, 1, Group B
• 18, 4, 2, Group B
• 18, 4, 3, Group A
• 18, 4, 4, Group A
• 19, 4, 1, Group B
• 19, 4, 2, Group B
• 19, 4, 3, Group A
• 19, 4, 4, Group A
• 20, 4, 1, Group A
• 20, 4, 2, Group A
• 20, 4, 3, Group B
• 20, 4, 4, Group B
• 21, 4, 1, Group A
• 21, 4, 2, Group B
• 21, 4, 3, Group B
• 21, 4, 4, Group A
• 22, 4, 1, Group B
• 22, 4, 2, Group A
• 22, 4, 3, Group A
• 22, 4, 4, Group B
• 23, 4, 1, Group B
• 23, 4, 2, Group A
• 23, 4, 3, Group A
• 23, 4, 4, Group B
• 24, 4, 1, Group A
• 24, 4, 2, Group A
• 24, 4, 3, Group B
• 24, 4, 4, Group B
• 25, 4, 1, Group B
• 25, 4, 2, Group B
• 25, 4, 3, Group A
• 25, 4, 4, Group A