Table 5 Comparison of self-reported and clinically-examined numbers of teeth by oral condition and oral hygiene in subjects of a regular company medical checkup
From: Validity of self-reported number of teeth and oral health variables
Male (n = 809) | Female (n = 506) | |||||
|---|---|---|---|---|---|---|
n | ρ a | p-value | n | ρ a | p-value | |
Oral condition | ||||||
Clinically-examined number of teeth | ||||||
0 ~ 19 | 64 | 0.70 | <0.01 | 26 | 0.54 | <0.01 |
20 ~ 32 | 745 | 0.61 | <0.01 | 480 | 0.63 | <0.01 |
CPI | ||||||
0 | 34 | 0.72 | <0.01 | 48 | 0.69 | <0.01 |
1,2 | 557 | 0.66 | <0.01 | 384 | 0.63 | <0.01 |
3,4 | 218 | 0.78 | <0.01 | 74 | 0.75 | <0.01 |
Oral hygiene | ||||||
Frequency of tooth brushing | ||||||
Once a day | 230 | 0.69 | <0.01 | 41 | 0.74 | <0.01 |
Twice a day | 436 | 0.68 | <0.01 | 263 | 0.68 | <0.01 |
3 or more times a day | 143 | 0.76 | <0.01 | 202 | 0.62 | <0.01 |
Frequency of dental scaling visit | ||||||
None | 404 | 0.67 | <0.01 | 215 | 0.74 | <0.01 |
Once or twice a year | 306 | 0.67 | <0.01 | 224 | 0.54 | <0.01 |
3 or more times a year | 99 | 0.80 | <0.01 | 67 | 0.71 | <0.01 |