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Table 3 Group characteristics of a fictional network (g identifies the group. n is the total number of subjects and d is the total number of deaths in each group. Additional characteristics are also listed: the Q statistic describing heterogeneity has df degrees of freedom, and τ gives the square root of the τ 2 statistics for between - cohort heterogeneity)

From: Multiple Score Comparison: a network meta-analysis approach to comparison and external validation of prognostic scores

g Scores Cohorts n d Q df τ
1 A, B R 4000 350 28 0 0.019
2 A, C S, T 1000 200 15.5 1 0.014
3 A, B, D U, V 3000 300 13.4 2 0.004
4 A, B, C, D X, Y 2000 300 9.6 3 0.036