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Relationship between age group, educational level and completely edentulous state
| Age group | Educational Level | ||
| Nil | Primary | Secondary/Tertiary | |
| ≤20 | 1(9.1%) | - | - |
| 21–40 | 2(18.2%) | - | - |
| 41–60 | 4(33.4%) | 1(33.3%) | |
| >60 | 4(33.4%) | 2(66.7%) | 4(100%) |
Likelihood-ratio χ2 = 7.515, df = 6 P = 0.276
