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Table 3 Cluster Analysis

From: The ChQoL questionnaire: an Italian translation with preliminary psychometric results for female oncological patients

     Centroids   
   n. of clusters cluster 1 cluster 2 cluster 3   
Facet Item by item by Facet mean (sd) mean (sd) mean (sd) outliers extr mean
Complexion 1 3 2 21.0 (10.5) 50.6 (8.4) 89.5 (7.1) -- 55.3
  2 3 2 13.9 (7.8) 44.8 (7.8) 80.4 (11.3) -- 47.1
  3 2 2 35.6 (14.3) - - 79.3 (11.2) -- 57.5
  4 3 2 14.7 (9.5) 47.1 (7.8) 83.0 (10.2) -- 48.9
Sleep 5 2 2 29.4 (16.8) - - 85.2 (10.7) -- 57.3
  6 2 2 29.6 (17.1) - - 85.4 (10.0) -- 57.5
  7 2 2 36.7 (16.4) - - 83.8 (9.2) -- 60.3
Stamina 8 3 3 15.1 (10.1) 47.1 (7.3) 83.7 (9.5) -- 49.4
  9 2 3 15.8 (11.0) - - 65.6 (17.0) -- 40.7
  10 3 3 15.9 (9.8) 50.5 (8.7) 85.5 (8.0) -- 50.7
  11 2 3 25.7 (15.5) - - 79.4 (12.6) -- 52.6
  12 3 3 12.1 (7.9) 43.4 (8.8) 82.4 (10.2) -- 47.2
  13 2 3 29.1 (16.7) - - 83.7 (11.6) -- 56.4
Appetite 14 2 3 33.8 (15.9) - - 84.9 (10.9) -- 59.3
  15 2 3 36.7 (19.9) - - 87.6 (8.2) -- 62.1
  16 2 3 39.9 (17.0) - - 87.1 (8.1) -- 63.5
  17 2 3 38.6 (16.3) - - 88.2 (7.6) -- 63.4
Climate Adapt. 18 2 2 35.9 (18.1) - - 85.9 (9.2) -- 60.9
  19 3 2 16.7 (9.8) 54.5 (10.3) 88.5 (6.7) -- 52.6
  20 2 2 33.5 (17.1) - - 85.2 (10.0) -- 59.4
Consciousness 21 2 2 42.0 (17.1) - - 86.0 (9.2) -- 64.0
  22 2 2 48.5 (16.1) - - 88.8 (6.6) 1.5% 68.7
  23 2 2 51.0 (17.2) - - 89.6 (5.6) 3.0% 70.3
Thinking 24 2 2 36.1 (18.0) - - 81.6 (10.8) -- 58.8
  25 2 2 41.0 (16.8) - - 85.1 (9.3) -- 63.1
  26 2 2 54.0 (15.8) - - 89.4 (6.2) 2.0% 71.7
  27 2 2 45.3 (13.7) - - 85.4 (9.1) 0.5% 65.3
  28 2 2 44.6 (13.7) - - 85.5 (8.6) -- 65.1
Spirit 29 2 3 47.5 (15.0) - - 87.1 (7.6) 1.0% 67.3
  30 2 3 46.6 (14.3) - - 86.0 (8.6) -- 66.3
Verbal Expr. 31 2 2 52.3 (12.7) - - 87.0 (7.2) 2.0% 69.7
  32 2 2 46.1 (16.7) - - 87.2 (7.2) 0.5% 66.6
Joy 33 3 2 14.9 (8.7) 50.9 (9.6) 85.3 (8.5) -- 50.1
  34 3 2 18.7 (9.8) 53.6 (8.3) 83.2 (9.7) -- 51.0
  35 2 2 35.5 (16.8) - - 83.6 (10.6) -- 59.5
  36 2 2 64.4 (13.0) - - 91.5 (4.8) 3.9% 77.9
Anger 37 2 2 39.6 (19.8) - - 85.5 (8.4) -- 62.6
  38 2 2 46.8 (16.8) - - 87.8 (7.3) 3.0% 67.3
  39 2 2 36.0 (18.8) - - 84.9 (9.7) -- 60.5
  40 2 2 42.0 (16.0) - - 87.5 (8.4) -- 64.7
  41 3 2 12.2 (10.3) 52.3 (9.0) 87.9 (7.4) -- 50.0
Depression 42 2 2 14.6 (9.7) - - 63.5 (17.7) -- 39.1
  43 3 2 16.2 (10.8) 55.8 (10.6) 88.9 (6.7) -- 52.5
  44 2 2 35.8 (18.7) - - 87.1 (9.6) -- 61.5
  45 2 2 43.2 (19.3) - - 88.4 (7.2) 0.5% 65.8
  46 3 2 16.7 (10.4) 56.3 (10.6) 88.0 (6.8) -- 52.3
  47 2 2 34.4 (17.8) - - 82.1 (10.8) -- 58.2
Fear & Anx. 48 3 3 13.9 (10.0) 57.4 (10.3) 88.4 (6.5) -- 51.2
  49 3 3 12.8 (9.5) 49.5 (7.6) 84.1 (8.7) -- 48.5
  50 3 3 12.6 (6.9) 47.3 (8.1) 84.3 (9.7) -- 48.5
  1. Optimal number of clusters identified by Two-step Cluster Analysis, applied either by item (columns 3) or by Facet (column 4). The centroids in the former case are reported, for each cluster. The number of outliers, if any, is expressed as percentage over the 203 respondents. The last column shows the mean of the external centroids (clusters 1 and 3).