From: Oral health status of adults in Southern Vietnam - a cross-sectional epidemiological study
 | Urban | Rural |  | ||
---|---|---|---|---|---|
Province | Factories/Institutions | Number of subjects aged ≥ 20 | Communes | Number of subjects aged ≥ 20 | Total sample |
Cantho | 5 | 957 | 7 | 707 | 1664 |
Angiang | 5 | 564 | 9 | 631 | 1195 |
HCM | 5 | 591 | 5 | 600 | 1191 |
Total | 15 | 2112 | 21 | 1938 | 4050 |