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Table 4 Gingival bleeding risk factors of the 12-year-old Lisu children (multivariate logistic regression model, N = 482)

From: Oral health status of 12-year-old children in Lisu minority ethnic group in China: a cross-sectional study

Risk factors

Odds ratio (95% C.I.)

p-value

Mother’s education level

  

 Primary school level, ≤ 6 years

2.51 (1.32, 3.53)

0.003

 Secondary school level or above, > 6 yearsa

  

Monthly pocket money

 

< 0.001

 Less than 50RMB (~ US$ 7)

3.75 (2.05, 6.86)

 

 More than 50RMB (~ US$ 7) a

  

Toothbrushing frequency (daily)

 

0.004

 Less than twice

2.41 (1.33, 4.39)

 

 Twice or abovea

  
  1. RMB Renminbi (Chinese Yuen), US$ U.S. Dollar
  2. aReference group