Table 3. Significance test between oral characteristics and periodontal disease

Oral health characteristics Division Periodontal disease Chi-square (p-value)
No % Yes %
Total 7,578 68.26 3,524 31.74
Oral health status Very good 101 1.33 43 1.22 381.67 (< 0.001)
Good 1,142 15.07 347 9.85
Ordinary 3,459 45.65 1,180 33.48
Bad 2,408 31.78 1,443 40.95
Very bad 468 6.18 511 14.50
Toothache experience over the past year No 4,870 64.26 1,938 54.99 86.772 (< 0.001)
Yes 2,708 35.74 1,586 45.01
Chewing problem Very uncomfortable 251 3.31 264 7.49 569.22 (< 0.001)
Uncomfortable 1,008 13.30 909 25.79
Ordinary 1,183 15.61 735 20.86
Not uncomfortable 1,935 25.53 750 21.28
Not uncomfortable at all 3,201 42.24 866 24.57
Speaking problem Very uncomfortable 85 1.12 89 2.53 355.08 (< 0.001)
Uncomfortable 389 5.13 388 11.01
Ordinary 707 9.33 561 15.92
Not uncomfortable 1,346 17.76 717 20.35
Not uncomfortable at all 5,051 66.65 1,769 50.20
Brushing teeth yesterday No 69 0.91 50 1.42 5.3916 (< 0.001)
Yes 7,509 99.09 3,474 98.58
Permanent tooth decay No 5,578 73.61 2,416 68.56 30.174 (< 0.001)
Yes 2,000 26.39 1,108 31.44