Table 3. The association between level of knowledge and demographic characteristics.
*Fisher-Freeman-Halton exact test value.
**Pearson chi-square test value.
***P≤0.05 indicates a significant difference.
| Demographic factor | Level of knowledge | Test value | p-Value | ||
| Insufficient | Sufficient | ||||
| Age (years) | Below 20 | 29 (17.5) | 25 (16) | 4.17* | 0.537 |
| 20-29 | 83 (50) | 75 (48.1) | |||
| 30-39 | 28 (16.9) | 27 (17.3) | |||
| 40-49 | 13 (7.8) | 19 (12.2) | |||
| 50-59 | 10 (6) | 10 (6.4) | |||
| 60< | 3 (1.8) | 0 (0) | |||
| Gender | Female | 95 (57.2) | 119 (76.3) | 13.1** | 0.001*** |
| Male | 71 (42.8) | 37 (23.7) | |||
| Education level | Intermediate school | 4 (2.4) | 3 (1.9) | 3.5* | 0.486 |
| High school | 28 (16.9) | 19 (12.2) | |||
| College | 122 (73.5) | 117 (75) | |||
| Postgraduate studies (Master's and PhD) | 8 (4.8) | 14 (9) | |||
| Others | 4 (2.4) | 3 (1.9) | |||
| Occupation | Government sector | 34 (20.5) | 42 (26.9) | 6.13* | 0.186 |
| Private sector | 15 (9) | 22 (14.1) | |||
| Private job | 2 (1.2) | 3 (1.9) | |||
| Unemployed | 108 (65.1) | 86 (55.1) | |||
| Retired | 7 (4.2) | 3 (1.9) | |||
| Do you clean your teeth using a brush and toothpaste? | Once a day | 49 (29.5) | 33 (21.2) | 7.19* | 0.120 |
| Twice daily | 67 (40.4) | 78 (50) | |||
| More than twice daily | 26 (15.7) | 31 (19.9) | |||
| Irregular | 20 (12) | 13 (8.3) | |||
| Use the Miswak only | 4 (2.4) | 1 (0.6) | |||
| Do you have any chronic diseases? | No | 151 (91) | 141 (90.4) | 0.03** | 0.858 |
| Yes | 15 (9) | 15 (9.6) | |||
| If most of your previous answers are correct, where did you get the information from? | The dentist | 24 (14.5) | 46 (29.5) | 11.66** | 0.009*** |
| The general practitioner | 10 (6) | 6 (3.8) | |||
| Social media accounts | 92 (55.4) | 67 (42.9) | |||
| The media | 40 (24.1) | 37 (23.7) | |||