Table 1.
Descriptive characteristics of the study population stratified by sex (see next page)
| Males | Females | |||
|---|---|---|---|---|
| Study population | T2D | Study population | T2D | |
| Number of individuals (%) | 321,933 (100) | 12,252 (3.8) | 305,825 (100) | 7,990 (2.6) |
| Follow-up age, mean (SD) years | 49.4 (4.4) | 43.8 (5.6) | 49.7 (4.1) | 41.7 (6.6) |
| Follow-up time, mean (SD) years | 22.5 (3.8) | 16.4 (5.2) | 22.8 (3.3) | 14.4 (6.1) |
| Education, N (%) | ||||
| Low | 72,255 (22.4) | 4,440 (36.2) | 63,972 (20.9) | 3,015 (37.5) |
| Medium | 166,194 (51.6) | 6,314 (51.5) | 141,623 (46.3) | 3,704(46.1) |
| High | 83,484 (25.9) | 1,498 (12.2) | 100,230(32.8) | 1,312 (16.3), |
| Any DC, N (%) | 314,437 (97.7) | 12,075 (98.4) | 299,984 (98.1) | 7,890 (98.8) |
| Highest DC, mean (SD) | 9.13 (4.2) | 9.72 (4.2) | 9.27 (4.1) | 9.95 (4.1) |
| DCS, N (%) | ||||
| Low | 48,442 (15.1) | 1,382 (11.3) | 41,552 (13.6) | 821 (10.3) |
| Moderate | 214,039 (66.5) | 8,128 (66.3) | 207,179 (67.7) | 5,306 (66.4) |
| High | 48,993 (15.2) | 2,182 (17.8) | 46,677 (15.3) | 1,449 (18.1) |
| Severe | 10,459 (3.3) | 560 (4.6) | 10,417 (3.4) | 414 (5.2) |
| Any gingivitis, N (%) | 312,276 (97.0) | 11,937 (97.4) | 293,199 (98.9) | 7,696 (96.3) |
| Highest gingivitis, mean (SD) | 5.75 (2.3) | 6.17 (2.3) | 5.13 (2.2) | 5.62 (2.3) |
| GS, N (%) | ||||
| Low | 103,511 (32.2) | 3,207 (26.2) | 130,786 (42.8) | 2,803 (35.1) |
| Medium | 203,402 (63.2) | 8,165 (66.6) | 167,312 (54.7) | 4,799 (60.1) |
| High | 15,020 (4.7) | 880 (7.2) | 7,727 (2.5) | 388 (4.9) |
| Number of individuals in subset analyses (%) | 32,703 (100) | 867 (2.7) | 31,993 (100) | 661 (2.1) |
| Age at highest recorded DCS, N (%) | ||||
| < 12 years | 27,125 (83.0) | 721 (83.2) | 26,705 (83.5) | 554 (82.3) |
| ≥ 12 years | 5,542 (16.9) | 146 (16.8) | 5,288 (16.5) | 117 (17.7) |
| DC duration, N (%) | ||||
| 0–2 periods | 10,248 (31.4) | 215 (24.8) | 9,733 (30.4) | 182 (27.5) |
| 3 periods | 22,419 (68.6) | 652 (75.2) | 22,260 (69.6) | 479 (72.5) |
| DCS severity over time, N (%) | ||||
| Low | 8,039 (24.6) | 147 (16.9) | 7,463 (23.3) | 142 (21.5) |
| Moderate | 17,374 (53.2) | 483 (55.7) | 17,647 (55.2) | 355 (53.7) |
| High—Severe | 7,254 (22.2) | 237 (27.3) | 6,883 (21.5) | 164 (24.8) |
| Age at highest GS, N (%) | ||||
| < 12 years | 25,087 (76.8) | 630 (72.7) | 26,837 (83.9) | 517 (78.2) |
| ≥ 12 years | 7,580 (23.2) | 237 (27.3) | 5,156 (16.1) | 144 (21.8) |
| Gingivitis duration, N (%) | ||||
| 0–2 periods | 10,079 (30.9) | 213 (24.6) | 11,120 (34.8) | 208 (31.5) |
| 3 periods | 22,588 (69.2) | 654 (75.3) | 20,873 (65.2) | 453 (68.5) |
| GS severity over time, N (%) | ||||
| Low | 9,088 (27.8) | 179 (20.7) | 12,155 (37.9) | 211 (31.9) |
| Moderate | 22,147 (67.8) | 625 (72.1) | 19,050 (59.5) | 425 (64.3) |
| High | 1,432 (4.4) | 63 (7.3) | 788 (2.5) | 25 (3.8) |
DC dental caries, DCS dental caries score, GS gingivitis score, N number, SD standard deviations