Table 1 Dental caries experience of the surveyed children according to gender, age and place of birth
From: Oral health status and behaviours of preschool children in Hong Kong
Independent variable | Group | N | % dmft > 0 | dmft ± S.D. | Significance |
|---|---|---|---|---|---|
All | 700 | 49 | 2.2 ± 3.5 | ||
Gender | Boys | 373 | 50 | 2.4 ± 3.7 | p > 0.05 |
Girls | 327 | 48 | 2.1 ± 3.3 | ||
Age | 4 | 239 | 41 | 1.9 ± 3.4 | p > 0.05 |
5 | 338 | 48 | 2.3 ± 3.6 | ||
6 | 123 | 64 | 2.6 ± 3.3 | ||
Place of birth | Hong Kong a | 649 | 48 | 2.2 ± 3.5 | p = 0.02 |
China b | 42 | 69 | 3.5 ± 4.0 |