From: Prevalence and relevant factors of halitosis in Chinese subjects: a clinical research
P
OR
95%CI
Lower Upper
Thickness of tongue coating
 0
0.040
1
 1
0.694
0.800
0.263
2.433
 2
0.465
1.537
0.485
4.870
 3
0.148
2.299
0.743
7.112