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Table 6 Relationship between mean numbers of sextants with healthy gums of the studied young adults and selected independent variables (Negative binomial regression) (n = 324)

From: Risk indicators of oral health status among young adults aged 18 years analyzed by negative binomial regression

  Incidence rate ratio 95% CI# p
Toothbrushing frequency    
 Twice or more 1.93 1.43-2.60 <0.001
 Once or less a    
Oral health knowledge score 1.09 1.03-1.15 0.002
  1. The model was adjusted by all four the socio-demographic factors: Gender, education level, income household income and dental insurance coverage.
  2. a Reference group. #95% CI = 95% Confidence Interval.