Table 2:

Inter- and intraobserver agreement regarding question 4 (best final management choice)

CategoriesaAll Cases (n = 35)Patients in RCTs (n = 14)Others (n = 21)
Interobserver agreement
    All raters (n = 22)50.219 ± 0.0170.225 ± 0.0200.190 ± 0.025
20.111 ± 0.0180.151 ± 0.0360.072 ± 0.020
    Surgeons (n = 6)50.252 ± 0.0250.202 ± 0.0430.271 ± 0.033
20.114 ± 0.0840.063 ± 0.1310.148 ± 0.109
    >10 years' experience (n = 13)50.210 ± 0.0190.203 ± 0.0300.199 ± 0.025
20.062 ± 0.0300.120 ± 0.0500.024 ± 0.038
    >15 FD experiences (n = 9)50.182 ± 0.0290.258 ± 0.0420.116 ± 0.040
20.093 ± 0.0320.201 ± 0.0550.018 ± 0.040
Intraobserver agreement
    Rater 150.465 ± 0.1150.432 ± 0.1620.465 ± 0.163
20.634 ± 0.1090.340 ± 0.1780.463 ± 0.195
    Rater 250.387 ± 0.1120.421 ± 0.1750.333 ± 0.143
20.243 ± 0.1750.176 ± 0.2720.271 ± 0.208
    Rater 350.501 ± 0.1040.246 ± 0.1410.629 ± 0.124
20.382 ± 0.1140.263 ± 0.1540.442 ± 0.160
    Rater 450.634 ± 0.1090.509 ± 0.1780.707 ± 0.129
20.651 ± 0.1290.571 ± 0.1980.712 ± 0.153
  • a The number 5 indicates that answers were treated as 5 categories: FD, coiling, observation, occlusion of the parent vessel, and surgical clipping. The number 2 indicates that answers were treated as 2 categories: flow diversion versus all other treatment groups.