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. 2010 Apr 15;3(1):15–19. doi: 10.5005/jp-journals-10005-1048

Table 2: Comparison of class II and IV with time lapsed after injury*

     Within
1 month 		     1-6 months      6 months
1 year 		     More than
1 year 		     total     
Ellis’ II      9      9      6      11      35     
Ellis ’IV      9      10      5      75      99     
Total      18      19      11      86      134     

*Chi-square = 20.36 > 0.01