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Table 3 Intra-group association tests (Pearson’s x2, odds ratio) of qualitative variables for the group n3 (13 to 18 years of age)

From: Dentofacial characteristics of oral breathers in different ages: a retrospective case–control study

Variables OBl(n) OBl % NB (n) NB % Total Pearson X p-value DF Lilihood x p-value DF OD IC 95 % DF OR IC 95 %
F 91 54 104 56   0.072 0.788 1 0.072 0.7888 1   
M 76 46 82 44    
Total 167   186   353         
I 52 39 85 50          
II 73 54 69 40   5.102 0.024* 1 5.121 0.024* 1 1.73 (1.07; 2.78)
III 10 7 17 10   0.008 0.928 1 0.008 0.928 1   
Total 135   171   306         
NMx 21 13 15 8          
PMx 113 69 127 70   1.586 0.208 1 1.59 0.207 1   
RMx 29 18 40 22   2.521 0.112 1 2.528 0.112 1   
Total 163   182   345         
NM 17 10 23 13          
PM 83 51 103 56   0.06 0.806 1 0.06 0.806 1   
RM 64 39 57 31   1.299 0.254 1 1.302 0.254 1   
Total 164   183   347         
NM 45 28 63 35          
IM 60 37 73 41   0.288 0.592 1 0.288 0.591 1   
SM 56 35 42 24   4.924 0.026* 1 4.943 0.026* 1 1.87 (1.07; 3.24)
Total 161   178   339         
NLAFH 27 17 47 27          
ILAFH 109 68 103 58   4.902 0.027* 1 4.957 0.026* 1 1.84 (1.07; 3.17)
DLAFH 25 15 26 15          
Total 161   176   337         
NP 29 18 35 19          
BP 42 26 55 31   0.063 0.801 1 0.063 0.801 1   
DP 90 56 89 50   0.465 0.495 1 0.466 0.495 1   
Total 161   179           
  1. *Significant p values <0.05