Table 5. Distribution of studies according to model comparison methods; 18.6% (21/113) of studies did not compare their model results to any alternative models or previously published models or benchmarks.

Model comparison methods	Studies (n=113), n (%)
Compared with their own multiple models	75 (66.4)
Compared with previous models or benchmarks	4 (3.5)
Compared with previous models and their own multiple models	13 (11.5)
No comparisons	21 (18.6)