Table 2. Association of tooth lose rate with mild cognitive impairment in elderly adults, a longitudinal study in China, 1998 to 2019.
| Population | Tooth lose rate | Odds ratio (95% confidence intervals) | |||
| Model 1 | Model 2 | Model 3 | Model 4 | ||
| Whole population | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 0.94 (0.86-1.04) | 0.94 (0.86-1.03) | 0.95 (0.86-1.05) | 0.94 (0.85-1.03) | |
| Middle | 1.11 (1.00-1.23) | 1.11 (1.00-1.23) | 1.16 (1.04-1.29) | 1.16 (1.04-1.29) | |
| Severe | 1.12 (1.03-1.22) | 1.14 (1.04-1.24) | 1.22 (1.12-1.33) | 1.28 (1.17-1.40) | |
| Age at baseline, 65-79 years | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 0.85 (0.70-1.03) | 0.84 (0.69-1.01) | 0.83 (0.68-1.01) | 0.81 (0.67-0.99) | |
| Middle | 1.13 (0.93-1.37) | 1.12 (0.93-1.36) | 1.15 (0.94-1.40) | 1.14 (0.93-1.39) | |
| Severe | 1.23 (1.06-1.44) | 1.26 (1.08-1.47) | 1.29 (1.10-1.52) | 1.33 (1.13-1.56) | |
| Age at baseline, 80-89 years | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 0.98 (0.85-1.12) | 0.98 (0.85-1.13) | 0.99 (0.86-1.15) | 0.97 (0.84-1.12) | |
| Middle | 1.04 (0.89-1.21) | 1.04 (0.89-1.22) | 1.12 (0.95-1.31) | 1.12 (0.95-1.32) | |
| Severe | 1.15 (1.01-1.31) | 1.17 (1.02-1.33) | 1.26 (1.10-1.44) | 1.33 (1.15-1.53) | |
| Age at baseline, ≥ 90 years | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 1.00 (0.84-1.19) | 1.00 (0.84-1.18) | 1.02 (0.85-1.22) | 1.01 (0.84-1.21) | |
| Middle | 1.24 (1.02-1.51) | 1.23 (1.01-1.50) | 1.28 (1.04-1.57) | 1.28 (1.04-1.57) | |
| Severe | 1.05 (0.89-1.24) | 1.07 (0.90-1.27) | 1.17 (0.98-1.40) | 1.23 (1.03-1.48) | |
| Male | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 0.95 (0.83-1.10) | 0.95 (0.82-1.09) | 0.98 (0.85-1.14) | 0.97 (0.83-1.12) | |
| Middle | 1.25 (1.08-1.45) | 1.25 (1.07-1.45) | 1.28 (1.10-1.50) | 1.28 (1.10-1.49) | |
| Severe | 1.07 (0.94-1.21) | 1.09 (0.96-1.23) | 1.17 (1.02-1.33) | 1.20 (1.04-1.37) | |
| Female | |||||
| Stable | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | 1 (Ref.) | |
| Mild | 0.94 (0.82-1.06) | 0.93 (0.82-1.06) | 0.94 (0.82-1.07) | 0.92 (0.81-1.05) | |
| Middle | 1.01 (0.87-1.16) | 1.00 (0.87-1.16) | 1.06 (0.92-1.23) | 1.06 (0.92-1.23) | |
| Severe | 1.17 (1.04-1.31) | 1.19 (1.06-1.34) | 1.28 (1.13-1.45) | 1.37 (1.20-1.55) | |
Model 1: adjusted for age, sex, and enrollment year; Model 2: model 1 + further adjusted for province, residence, ethic, marriage status, occupation, education; Model 3: model 2 + further adjusted for ADL score, physical performance score, food diversity score, social activity score, and chronic disease score; Model 4: model 3 + further adjusted for No. of teeth at baseline and denture wearing at baseline.