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.