Table 1:

Results from linear (generalized) mixed modelling investigating the association between case characteristics with confidence in assessment, general retreatment recommendation (any retreatment), and specific retreatment recommendations (coiling, stent and coiling, clipping, other endovascular treatment)

	Confidence^{^a} β	Any Retreatment^{^b} Odds Ratio	Coiling Only^{^b} Odds Ratio	Stent and Coiling^{^b} Odds Ratio	Clipping^{^b} Odds Ratio	Other Endovascular Treatment^{^b} Odds Ratio
Case characteristics
Location^{^c}	0.1300	0.6258	0.9887	1.4288	0.0241	0.1635^ⁱ
Bleeding^{^d}	0.0432	0.7638	0.7022	0.9231	1.7582	0.7084
Aneurysm size (mm)	0.0004	0.9959	1.0006	0.9873^ⁱ	1.0198	1.0072
Aneurysm neck width (mm)	−0.0447	0.9088	0.7354^ⁱ	1.3879^ⁱ	0.4234^ⁱ	0.8492
Patient age^{^e}	NA	0.2522^{^j}	0.3529^{^j}	0.2171^{^j}	0.1879^{^j}	0.2796^{^j}
Casewise averaged ratings across raters
Proportion rating residual grade^{^f}	0.4683	86.2958^{^j}	79.9203^{^j}	141.9125^{^j}	118.8253	7.3950
Proportion rating worsening^{^g}	1.1790^{^j}	2.2709	1.2754	2.7537	0.2078	8.3006
Proportion rating difficult retreatment^{^h}	−0.2387	0.4200	0.0282^ⁱ	0.3909	99.9733	1.6362
Mean confidence	NA	2.7197^{^j}	2.4697	2.2326	5.1344	0.9219

Note:—NA indicates not analyzed.
↵a Rated from completely uncertain (1) to completely certain (6).
↵b Binary compared with no treatment; odds ratios of >1 indicate a higher probability of treatment, and odds ratios of <1 indicate a lower probability of treatment with an increase in the predictors.
↵c Posterior (1) versus anterior (0).
↵d Ruptured (1) versus asymptomatic (0).
↵e Elderly, older than 50 years, (1) versus younger, 50 years or younger (0).
↵f Proportion of ratings of residual versus complete/neck remnant aneurysm from 0 to 1.
↵g Proportion of ratings of worse-versus-the same/better condition from 0 to 1.
↵h Proportion of ratings of difficult/unbearably risky versus standard retreatment from 0 to 1.
↵i P < .050.
↵j P < .00.