Tooth loss | p value | ||
---|---|---|---|
Absence (n = 1797) | Presence (n = 691) | ||
Patient-level variables | Mean (SD) | ||
Age (years) | 57.0 (14.7) | 65.5 (11.2) | < 0.001 |
Number of teeth | 24.9 (4.5) | 21.2 (6.0) | < 0.001 |
Number of decayed teeth | 0.4 (1.2) | 0.6 (1.4) | 0.009 |
Mean PPD (mm) | 2.8 (0.8) | 3.2 (1.0) | < 0.001 |
BOP (%) | 23.3 (25.5) | 30.4 (28.5) | < 0.001 |
n (%) | |||
Gender | |||
Male | 549 (67.3) | 267 (32.7) | < 0.001 |
Female | 1248 (74.6) | 424 (25.4) | |
Smoking | |||
Never | 1307 (75.2) | 430 (24.8) | < 0.001 |
Past | 362 (65.5) | 191 (34.5) | |
Current | 128 (64.6) | 70 (35.4) | |
Diabetes mellitus | |||
No | 1702 (72.9) | 632 (27.1) | 0.002 |
Yes | 95 (61.7) | 59 (38.3) | |
Tooth brushing frequency (times per day) | |||
≥ 3 | 685 (76.8) | 207 (23.2) | < 0.001 |
2 | 917 (70.8) | 379 (29.2) | |
≤ 1 | 195 (65.0) | 105 (35.0) | |
Use of secondary oral hygiene productsa | |||
Yes | 1356 (73.0) | 502 (27.0) | 0.082 |
No | 441 (70.0) | 189 (30.0) | |
Bleeding during tooth brushing | |||
No | 1,192 (75.6) | 385 (24.4) | < 0.001 |
Yes | 605 (66.4) | 306 (33.6) | |
Eating between meals | |||
No | 205(63.5) | 118 (36.5) | < 0.001 |
Sometimes | 986 (72.5) | 374 (27.5) | |
Everyday | 606 (75.3) | 199 (24.7) | |
Reason for dental visit | |||
Treatment | 527 (63.0) | 309 (37.0) | < 0.001 |
Both treatment and maintenance | 313 (68.6) | 143 (31.4) | |
Maintenance | 957 (80.0) | 239 (20.0) | |
Education level (years) | |||
≥ 13 | 933 (77.2) | 276 (22.8) | < 0.001 |
≤ 12 | 868 (67.6) | 415 (32.4) | |
Economic status | |||
Low | 307 (72.1) | 119 (27.9) | 0.728 |
Middle | 1,241 (72.6) | 468 (27.4) | |
High | 249 (70.5) | 104 (29.5) | |
Working status | |||
Yes | 1,079 (77.9) | 306 (22.1) | < 0.001 |
No | 718 (65.1) | 385 (34.9) | |
Clinic-level variablesb | |||
Age of dental clinic director | |||
30s or 40s | 600 (76.5) | 184 (23.5) | 0.005 |
50s | 907 (70.5) | 380 (29.5) | |
60s or over | 290 (69.5) | 127 (30.5) | |
Gender of dental clinic director | |||
Male | 1,680 (72.0) | 653 (28.0) | 0.201 |
Female | 117 (75.5) | 38 (24.5) | |
Number of dental hygienists | |||
0 | 295 (69.6) | 129 (30.4) | 0.005 |
1–3 | 1,199 (71.4) | 478 (28.6) | |
≥ 4 | 311 (78.7) | 84 (21.3) | |
Time for oral health instruction (min) | |||
0 | 243 (68.5) | 112 (31.5) | 0.003 |
1–9 | 570 (69.0) | 256 (31.0) | |
10–19 | 613 (74.3) | 212 (25.7) | |
≥ 20 | 371 (77.0) | 111 (23.0) |