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Table 2 Summary of tools’ information, indices, predictive performance and quality

From: Grading and assessment of clinical predictive tools for paediatric head injury: a new evidence-based approach

Tool Tool Grade Tool Information Study Indices Predictive Performance Study Quality Indicators
Country Year Citations Studies Citation Index Publication Index Literature Index Sensitivity Specificity Development Method Patient Sample Size Number of Authors Journal Impact Dedicated Support
PECARN [49] A2 USA 2009 885 24 88.5 2.40 21.24 0.97 0.59 R 42,412 32 53.25 Yes
CHALICE [43] B2 UK 2006 309 15 23.8 1.15 4.64 0.98 0.86 R 22,772 6 3.26 Yes
CATCH [51] C1 USA 2006 319 12 24.5 0.92 3.83 0.98 0.50 R 3866 14 6.80 Yes
NEXUS II [50, 54] C1 USA 2005 124 6 8.9 0.43 0.74 0.99 0.15 R 1666 8 5.70 Yes
Palchak [52] C2 USA 2003 248 3 15.5 0.19 0.74 1.00 0.46 R 2043 10 5.35 No
Haydel [47] C3 USA 2003 118 1 7.4 0.06 0.12 1.00 0.24 R 175 5 5.35 No
Atabaki [39] C3 USA 2008 111 1 10.1 0.09 0.11 1.00 0.46 R 1000 8 5.73 No
Buchanich [40] C3 USA 2007 4 1 0.3 0.08 0.00 1.00 0.40 R 97 1 1.00 No
Da Dalt [41] C0 Italy 2006 85 1 6.5 0.08 0.09 1.00 0.87 M 3806 8 1.79 No
Greenes [44, 45] C0 USA 1999 237 2 11.9 0.10 0.47 0.53 0.72 M 422 2 5.70 No
Klemetti [48] C0 Finland 2009 18 1 1.8 0.10 0.02 0.94 0.29 M 485 4 1.07 No
Quayle [53] C0 USA 1997 291 1 13.2 0.05 0.29 0.44 0.85 M 322 7 5.70 No
Dietrich [42] C0 USA 1993 220 1 8.5 0.04 0.22 1.00 0.17 M 324 5 5.35 No
Güzel [46] C0 Turkey 2009 17 1 1.7 0.10 0.02 0.69 0.43 M 916 6 1.00 No
  1. Citation Index (Average Annual Citations) = (number of citations/age of development study), Publication Index (Average Annual Studies) = (number of studies/age of development study), Literature Index (Citations and Publications) = (number of citations X number of studies). Age of development study = (current year – year of tool’s development). Development method: R Recursive Partitioning, M Multivariate Logistic Regression