Table 2.
Hazard ratios for mortality by dental status, Leisure World Cohort Study, 1992–2009.
| Men | Women | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. | Model 1* | Model 2* | No. | Model 1* | Model 2* | |||||
| HR | 95% CI | HR | 95% CI | HR | 95% CI | HR | 95% CI | |||
| Number of natural teeth | ||||||||||
| 26–32 | 659 | 1.00 | 1.00 | 1709 | 1.00 | 1.00 | ||||
| 16–25 | 541 | 1.04 | 0.92–1.18 | 1.03 | 0.91–1.17 | 1131 | 1.01 | 0.93–1.10 | 0.97 | 0.89–1.06 |
| 1–15 | 343 | 1.22 | 1.07–1.41 | 1.21 | 1.05–1.40 | 627 | 1.23 | 1.11–1.36 | 1.17 | 1.06–1.30 |
| 0 | 221 | 1.33 | 1.13–1.56 | 1.18 | 1.00–1.39 | 380 | 1.30 | 1.15–1.47 | 1.21 | 1.07–1.37 |
| Number of natural teeth | ||||||||||
| 20–32 | 1053 | 1.00 | 1.00 | 2551 | 1.00 | 1.00 | ||||
| 1–19 | 490 | 1.11 | 0.99–1.25 | 1.09 | 0.97–1.23 | 916 | 1.19 | 1.10–1.30 | 1.15 | 1.06–1.25 |
| (i) Dentures—yes | 446 | 1.12 | 1.00–1.30 | 1.10 | 0.98–1.24 | 809 | 1.19 | 1.09–1.30 | 1.15 | 1.05–1.25 |
| (ii) Dentures—no | 44 | 1.03 | 0.75–1.40 | 1.01 | 0.74–1.39 | 107 | 1.21 | 0.99–1.49 | 1.16 | 0.95–1.43 |
| 0 | 221 | 1.29 | 1.11–1.51 | 1.15 | 0.98–1.34 | 380 | 1.31 | 1.16–1.47 | 1.24 | 1.10–1.39 |
| Adequate masticatory function: 10+ upper teeth and 6+ lower teeth | ||||||||||
| Yes | 1017 | 1.00 | 1.00 | 2498 | 1.00 | 1.00 | ||||
| No | 747 | 1.16 | 1.05–1.29 | 1.12 | 1.01–1.24 | 1349 | 1.22 | 1.13–1.31 | 1.17 | 1.08–1.26 |
| (i) Dentures—yes | 680 | 1.16 | 1.05–1.29 | 1.11 | 1.00–1.24 | 1205 | 1.21 | 1.12–1.30 | 1.16 | 1.07–1.25 |
| (ii) Dentures—no | 67 | 1.18 | 0.91–1.52 | 1.19 | 0.92–1.55 | 144 | 1.33 | 1.12–1.59 | 1.25 | 1.05–1.50 |
| Dentures | ||||||||||
| None | 766 | 1.00 | 1.00 | 1786 | 1.00 | 1.00 | ||||
| Partial or partial plus one jaw full | 711 | 1.08 | 0.97–1.21 | 1.06 | 0.95–1.18 | 1359 | 1.08 | 1.00–1.17 | 1.05 | 0.97–1.14 |
| Full upper and lower | 213 | 1.29 | 1.10–1.51 | 1.14 | 0.96–1.34 | 344 | 1.22 | 1.08–1.38 | 1.14 | 1.01–1.30 |
| Unknown | 74 | 1.25 | 0.97–1.60 | 1.27 | 0.99–1.64 | 358 | 0.94 | 0.83–1.07 | 0.92 | 0.81–1.04 |
*Model 1: adjusted for age at entry.
Model 2: adjusted for age at entry, smoking, alcohol, caffeine, active activities, other activities, body mass index, high blood pressure, angina, heart attack, stroke, diabetes, rheumatoid arthritis, and cancer.