Table 2 Prevalence of dental caries and gingival bleeding according to socio-demographic background and oral-health related behaviours
Variables (N = 482) | DMFT > 0 (%) | p-value | Gingival bleeding (%) | p-value |
|---|---|---|---|---|
Socio-demographic background | ||||
Sex | < 0.001* | 0.791 | ||
Boy (233) | 27 | 88 | ||
Girl (249) | 42 | 89 | ||
Father’s education level | 0.345 | 0.003* | ||
Primary school level, ≤ 6 years (271) | 33 | 92 | ||
Secondary school level or above, > 6 years (211) | 37 | 83 | ||
Mother’s education level | 0.361 | < 0.001* | ||
Primary school level, ≤ 6 years (282) | 33 | 93 | ||
Secondary school level or above, > 6 years (200) | 37 | 82 | ||
Monthly pocket money | 0.120 | < 0.001* | ||
Less than 50RMB (~ US$ 7) (325) | 32 | 94 | ||
More than 50RMB (~ US$ 7) (157) | 39 | 77 | ||
Oral health-related behaviours | ||||
Toothbrushing frequency (daily) | 0.667 | < 0.001* | ||
Less than twice (315) | 34 | 93 | ||
Twice or above (167) | 36 | 80 | ||
Sugary snacking habits | 0.142 | 0.129 | ||
No (335) | 33 | 90 | ||
Yes (147) | 40 | 85 | ||
Sour food snacking habits | 0.298 | 0.057 | ||
No (360) | 33 | 90 | ||
Yes (122) | 39 | 84 | ||