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Table 4 Duncan’s multiple range test grouping of clusters by quality of life (QOL)

From: Multimorbidity and quality of life after blast-related injury among US military personnel: a cluster analysis of retrospective data

Duncan group Cluster n % QOL ISS
A Musculoskeletal 518 26.3% 0.501 7.3
Heterogeneous 629 31.9% 0.496 5.3
B Concussion/anxiety 309 15.7% 0.459 4.0
Polytrauma 274 13.9% 0.452 17.1
C Clinical triad 242 12.3% 0.416 8.3