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Table 3 Mean differences from multiple comparisons between clusters

From: Comprehensive assessment of alterations in hand deformities over 11 years in patients with rheumatoid arthritis using cluster analysis and analysis of covariance

  

Cluster 2

Cluster 3

Cluster 4

Cluster 5

Swan-neck deformity

cluster 1

− 0.395

−0.583

−1.501

− 10.600*

cluster 2

 

− 0.188

−1.106

− 10.205*

cluster 3

  

−0.918

−10.017*

cluster 4

   

−9.099*

Boutonnière deformity

cluster 1

0.681

−2.824*

−0.108

1.723*

cluster 2

 

−3.505*

−0.789

1.043

cluster 3

  

2.716*

4.547*

cluster 4

   

1.832

Ulnar drift

cluster 1

−1.295*

−1.008

−3.565*

0.021

cluster 2

 

0.286

−2.271*

1.316

cluster 3

  

−2.557*

1.029

cluster 4

   

3.586*

Kapandji index

cluster 1

0.242

0.647

7.832*

6.834*

cluster 2

 

0.405

7.590*

6.592*

cluster 3

  

7.185

6.187

cluster 4

   

−0.998

  1. The numbers express mean differences between clusters
  2. Multiple comparisons were performed with post-hoc Bonferroni. *: p < 0.05