Factor Total N Bleeding gums
N (%)
Toothache
N (%)
Biting difficulties
N (%)
Edentulism
N (%)
Overall 46038 2073 (5.2) 5370 (13.5) 1446 (3.6) 6160 (13.4)
Age
< 25 4578 296 (6.5) 898 (19.7) 116 (2.5) 7 (0.2)
26 - 35 6083 444 (7.4) 988 (16.4) 193 (3.2) 34 (0.6)
36 - 45 7907 507 (6.5) 1072 (13.8) 263 (3.4) 138 (1.7)
46 - 55 8393 430 (5.4) 1095 (13.8) 334 (4.2) 450 (5.4)
56 - 65 7994 262 (3.9) 717 (10.7) 256 (3.8) 1297 (16.3)
66 - 75 6527 108 (2.4) 408 (9) 182 (4) 2001 (30.7)
> 75 4556 26 (1.1) 192 (8.3) 102 (4.4) 2233 (49.2)
χ2 test P-value < 0.001 < 0.001 < 0.001 < 0.001
Gender
Male 20074 860 (4.9) 2266 (12.9) 630 (3.6) 2450 (12.2)
Female 25964 1213 (5.5) 3104 (14) 816 (3.7) 3710 (14.3)
χ2 test P-value 0.011 0.002 0.63a < 0.001
Qualification
No qualifications 10401 383 (5.5) 856 (12.3) 353 (5.1) 3447 (33.2)
HNC/D or equivalent or lower 23491 1133 (5.3) 2956 (13.9) 755 (3.6) 2242 (9.5)
Ordinary degree or higher 11957 556 (4.8) 1545 (13.4) 335 (2.9) 454 (3.8)
χ2 test P-value 0.075a 0.003 < 0.001 < 0.001
Body mass index
Underweight 550 17 (3.7) 82 (17.9) 24 (5.2) 91 (16.5)
Normal weight 11892 527 (4.9) 1563 (14.6) 415 (3.9) 1152 (9.7)
Overweight 14400 610 (4.8) 1632 (12.9) 404 (3.2) 1729 (12)
Obese 11374 630 (6.4) 1302 (13.3) 353 (3.6) 1589 (14)
χ2 test P-value < 0.001 < 0.001 0.008 < 0.001
Smoking status
Never 21194 896 (4.6) 2162 (11.2) 413 (2.1) 1843 (8.7)
Ex-smoker 13761 620 (5.5) 1440 (12.9) 399 (3.6) 2569 (18.7)
Current 10856 550 (6) 1748 (19.2) 630 (6.9) 1747 (16.1)
χ2 test P-value < 0.001 <0.001 < 0.001 < 0.001

aNo statistically significant at the level P < 0.05 (Chi-square test).
N = number of cases; χ2 = Chi-square.