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Table 2 Tooth brushing frequency according to education level, n

From: Characteristics of dental care-seeking behavior and related sociodemographic factors in a middle-aged and elderly population in northeast China

Education level

Never or almost never

1–3 times/month

1 time/week

2–6 times/week

1 time/day

≥2 times/day

P *

Illiteracy

28

6

4

42

55

13

<0.001

Primary school

18

7

9

57

133

33

Middle school

6

4

11

43

213

118

High school or above

7

1

5

15

212

148

  1. *Ridit analysis: χ2 = 234.527