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Table 3 Univariate analysis of the matrix model

From: Analysis of the natural collapse course of non-traumatic osteonecrosis of the femoral head based on the matrix model

 

Total

Collapse

Non-collapse

P value

n

n/%

n/%

Number of hips

202

98/48.5

104/51.5

0.000b***

One point

25

1/4.0

24/96.0

 

Two point

62

20/32.3

42/67.7

 

Four point

85

50/58.8

35/41.2

 

Eight point

30

27/90.0

3/10.0

 
  1. ***Extremely marked difference (P < 0.001)
  2. bChi-square test
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X