Table 3.
Association between the number of missing teeth with all-cause mortality in subgroups of age, obesity, and SBP.
| Characteristics | No. of death/ No. of participants |
HRs in the 1–2 missing teeth group based on no missing teeth group |
HRs in the
≥3 missing teeth group based on no missing teeth group |
P-value of interaction | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ≥3 Missing teeth | 1–2 Missing teeth | No missing teeth |
IRD per 1,000 person-years (95% CI) |
Adjusted HRs (95% CI)† |
p-value |
IRD per 1,000 (95% CI)† person- years (95% CI) |
Adjusted HRs (95% CI)† |
p-Value | ||
| Age < 55 | 417/8,334 | 330/8,334 | 292/8,334 | 0.38 (−0.10–0.86) |
1.10 (0.93–1.28) |
0.256 | 1.25 (0.74–1.77) |
1.15 (0.99–1.34) |
0.071 | <0.001* |
| Age ≥ 55 | 1,870/8,877 | 1,406/8,877 | 1,589/8,877 | −1.94 (−2.99– −0.89) |
1.01 (0.94–1.09) |
0.730 | 3.12 (1.98–4.27) |
1.20 (1.12–1.28) |
<0.001* | |
| BMI < 23 | 1,272/6,980 | 747/6,025 | 955/6,658 | −1.77 (−2.86–0.52) |
0.98 (0.89–1.08) |
0.688 | 3.72 (2.54–6.05) |
1.24 (1.14–1.35) |
<0.001* | 0.033* |
| BMI ≥ 23 | 1,015/1,0231 | 989/1,1186 | 926/1,0553 | 0.06 (−0.60–1.34) |
1.05 (0.96–1.15) |
0.313 | 1.00 (0.31–2.42) |
1.13 (1.03–1.24) |
0.007* | |
| SBP < 140 mmHg | 1,223/1,0694 | 885/1,0584 | 1,004/1,1020 | −0.65 (−1.31–0.69) |
1.04 (0.96–1.14) |
0.342 | 2.07 (1.36–3.54) |
1.30 (1.20–1.41) |
<0.001* | 0.014* |
| SBP ≥ 140 mmHg | 1,064/6,517 | 851/6,627 | 877/6,191 | −1.21 (−2.30–0.89) |
1.00 (0.90–1.11) |
0.982 | 2.02 (0.85–4.32) |
1.07 (0.97–1.18) |
0.159 | |
HRs, hazard ratios; IRD, incidence rate difference; SBP, systolic blood pressure.
*
Cox proportional hazard regression model, Significance at P < 0.05.
†
The model was adjusted for age, sex, income, region, obesity, smoking, alcohol consumption, systolic blood pressure, fasting blood glucose, total cholesterol and CCI scores.