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Table 7 Cluster proportions

From: Psychological and behavioral differences between low back pain populations: a comparative analysis of chiropractic, primary and secondary care patients

Classification method Sample Total
A B C D
Cluster analysis (K-means) ID % (n) 18.6 (67) 19.5 (25) 22.1 (56) 24.5 (52) 21.0 (200)
DYS % (n) 29.1 (105) 16.4 (21) 39.1 (99) 41.5 (88) 32.8 (313)
AC % (n) 52.4 (189) 64.1 (82) 38.7 (98) 34.0 (72) 46.2 (441)
  Total % (n) 100.0 (361) 100.0 (128) 100.0 (253) 100.0 (212) 100.0 (954)
Discriminant analysis ID % (n) 17.2 (62) 21.1 (27) 22.1 (56) 24.5 (52) 20.6 (197)
  DYS % (n) 30.5 (110) 16.4 (21) 38.3 (97) 41.5 (88) 33.1 (316)
  AC % (n) 52.4 (189) 62.5 (80) 39.5 (100) 34.0 (72) 46.2 (441)
  Total % (n) 100.0 (361) 100.0 (128) 100.0 (253) 100.0 (212) 100.0 (954)
  1. AC adaptive coper, ID interpersonally distressed, DYS dysfunctional