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Table 5 The estimation results of null model

From: Prognostic factors affecting the short-term efficacy of non-surgical treatment of chronic periodontitis: a multilevel modeling analysis

 

Standard deviation

Variance component

Chi-square value

P value

Random effect part

 Site level (first level)

0.79

0.62 (66%)

  

 Tooth level (second level)

0.41

0.17 (18%)

1904

0.000***

 Patient level (third level)

0.38

0.15 (16%)

453

0.000***

− 2logL

  

8089.56

 
  1. ***P value < 0.001
  2. − 2logL − 2 times the log likelihood
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European Journal of Medical Research

ISSN: 2047-783X

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