Table 1 Characteristics of population by periodontal disease
Variables | Periodontitis | P | Mild & severe periodontitis | P | |||
|---|---|---|---|---|---|---|---|
No (n = 4988), n (%) | Yes (n = 3339), n (%) | No (n = 4988), n (%) | Mild (n = 2448), n (%) | Severe (n = 891), n (%) | |||
Age, mean (95% confidence interval) (years) | 56.74 (56.41–57.06) | 60.89 (60.52–61.26) | < 0.001* | 56.74 (56.41–57.06)a | 60.99 (60.55–61.43)b | 60.62 (59.91–61.34)b | < 0.001§ |
Gender | |||||||
Male (n = 3572) | 1805 (34.1) | 1767 (51.5) | < 0.001 | 1805 (34.1) | 1222 (49.0) | 545 (58.5) | < 0.001 |
Female (n = 4755) | 3183 (65.9) | 1572 (48.5) | 3183 (65.9) | 1226 (51.0) | 346 (41.5) | ||
Residence | |||||||
Urban (n = 6706) | 4165 (85.8) | 2541 (77.9) | < 0.001 | 4165 (85.8) | 1882 (79.2) | 659 (74.3) | < 0.001 |
Rural (n = 1621) | 823 (14.2) | 798 (22.1) | 823 (14.1) | 566 (20.8) | 232 (25.7) | ||
Income | |||||||
I (lowest) (n = 2024) | 1127 (22.2) | 897 (27.1) | < 0.001 | 1127 (22.2) | 645 (26.1) | 252 (29.8) | < 0.001 |
II (n = 2103) | 1228 (24.0) | 875 (25.8) | 1228 (24.0) | 632 (24.8) | 243 (28.3) | ||
III (n = 2098) | 1280 (26.0) | 818 (24.3) | 1280 (26.0) | 604 (24.8) | 214 (23.0) | ||
IV (highest) (n = 2102) | 1353 (27.8) | 749 (22.8) | 1353 (27.8) | 567 (24.2) | 182 (19.0) | ||
Occupation | |||||||
White collar (n = 1662) | 1160 (22.3) | 502 (14.4) | < 0.001 | 1160 (22.3) | 371 (14.9) | 131 (13.2) | < 0.001 |
Blue collar (n = 2156) | 1104 (21.1) | 1052 (30.3) | 1104 (21.1) | 743 (29.3) | 309 (32.8) | ||
Pink collar (n = 4509) | 2724 (56.6) | 1785 (55.3) | 2724 (56.6) | 1334 (55.8) | 451 (54.0) | ||
Marital status | |||||||
Married (n = 8018) | 4794 (96.5) | 3224 (96.7) | 0.712 | 4794 (96.5) | 2369 (97.0) | 855 (95.9) | 0.402 |
Single (n = 309) | 194 (3.5) | 115 (3.3) | 194 (3.5) | 79 (3.0) | 36 (4.1) | ||
Diabetes | |||||||
No (n = 4593) | 3011 (60.7) | 1582 (49.1) | < 0.001 | 3011 (60.7) | 1196 (50.4) | 386 (45.3) | < 0.001 |
Prediabetes (n = 2367) | 1338 (27.2) | 1029 (29.7) | 1338 (27.2) | 757 (29.9) | 272 (29.1) | ||
Diabetes (n = 1367) | 639 (12.1) | 728 (21.2) | 639 (12.1) | 495 (19.7) | 233 (25.6) | ||
Smoking | |||||||
Quit/never smoker (n = 6989) | 4411 (89.0) | 2578 (77.9) | < 0.001 | 4411 (89.0) | 1927 (79.1) | 651 (74.7) | < 0.001 |
Current smoker (n = 1338) | 577 (11.0) | 761 (22.1) | 577 (11.0) | 521 (20.9) | 240 (25.3) | ||
Toothbrushing | |||||||
No (n = 121) | 60 (1.1) | 61 (1.8) | 0.023 | 60 (1.1) | 45 (1.8) | 15 (1.9) | 0.266 |
Yes (n = 8206) | 4928 (98.9) | 3278 (98.2) | 4928 (98.9) | 2402 (98.1) | 876 (98.1) | ||
Recent dental checkups | |||||||
No (n = 5230) | 2950 (58.4) | 2280 (68.4) | < 0.001 | 2950 (58.4) | 1680 (68.6) | 600 (67.8) | < 0.001 |
Yes (n = 3097) | 2038 (41.6) | 1059 (31.6) | 2038 (41.6) | 768 (31.4) | 291 (32.2) | ||