Table 10 Distribution of CPI scores by age and comparison with previous surveys
Age | N | Mean number of sextants with | |||
|---|---|---|---|---|---|
CPI = 0 | CPI = 1 | CPI = 2 | CPI = 3 | ||
12 | 282 | 3.1 | 0.7 | 2.2 | – |
15 | 282 | 3.0 | 0.7 | 2.3 | 0.0 |
18 | 282 | 2.4 | 0.2 | 3.3 | 0.1 |
Oral health surveys of Hong Kong Government | |||||
12 [27] (2011) | 1054 | 3.5 | 2.1 | 0.4 | – |
15–19 [38] (1982) | 374 | 2.3 | 3.7 | 2.7 | 0.3 |
15–19 [39] (1984) | 563 | 1.1 | 4.9 | 4.4 | 0.5 |