| Men | Women | Total | Strata model (Strata by sex) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hazard Ratio (95% CI) | P-value | Model fit | Hazard Ratio (95% CI) | P-value | Model fit | Hazard Ratio (95% CI) | P-value | Model fit | Hazard Ratio (95% CI) | P-value | Model fit | |
Self-assessed chewing ability by item response theory | ||||||||||||
1.17 (1.07–1.27) | < 0.001 | < 0.001 | 1.01 (0.92–1.09) | 0.937 | 0.791 | 1.03 (0.98–1.08) | 0.298 | 0.298 | 1.07 (1.02–1.14) | 0.013 | 0.013 | |
Self-assessed inability to chew at least one food among the 15 different types of food | ||||||||||||
1.72 (1.20–2.46) | 0.028 | 0.003 | 0.85(0.59–1.21) | 0.361 | 0.360 | 1.10 (0.83–1.35) | 0.652 | 0.625 | 1.25(0.97–1.62) | 0.088 | 0.088 | |
Self-assessed number of very hard-to-chew foods | ||||||||||||
 3 | Reference | 0.001 | Reference | 0.307 | Reference | 0.011 | Reference | 0.002 | ||||
 2 | 1.04 (0.72–1.50) | 0.830 | 1.17 (0.82–1.66) | 0.401 | 1.10 (0.86–1.43) | 0.445 | 1.10(0.85–1.42) | 0.460 | ||||
 1 | 0.89 (0.45–1.75) | 0.730 | 0.93 (0.59–1.46) | 0.745 | 0.82 (0.57–1.20) | 0.308 | 0.93(0.64–1.35) | 0.686 | ||||
 0 | 2.43 (1.56–3.79) | < 0.001 | 1.40 (0.95–2.06) | 0.093 | 1.55 (1.16–2.07) | 0.003 | 1.72(1.28–2.31) | < 0.001 | ||||
Self-assessed number of moderately hard-to-chew foods | ||||||||||||
 6 | Reference | 0.002 | Reference | 0.444 | Reference | 0.645 | Reference | 0.240 | ||||
 5 | 1.50 (0.92–2.44) | 0.102 | 0.66 (0.39–1.10) | 0.101 | 0.90 (0.64–1.28) | 0.548 | 1.02(0.71–1.45) | 0.921 | ||||
 4 | 1.42 (0.85–2.39) | 0.184 | 1.00 (0.62–1.61) | 0.994 | 1.10 (0.77–1.55) | 0.594 | 1.23(0.87–1.76) | 0.950 | ||||
 3 | 1.34 (0.84–2.12) | 0.217 | 0.72 (0.45–1.16) | 0.177 | 0.89 (0.64–1.23) | 0.464 | 1.01(0.73–1.41) | 0.950 | ||||
 2 | 1.39 (0.87–2.22) | 0.166 | 1.09 (0.70–1.70) | 0.706 | 1.15 (0.84–1.59) | 0.375 | 1.27(0.92–1.76) | 0.140 | ||||
 1 | 1.95 (1.10–3.47) | 0.023 | 0.96 (0.60–1.51) | 0.845 | 1.07 (0.76–1.52) | 0.697 | 1.34(0.93–1.92) | 0.115 | ||||
 0 | 3.82 (2.03–7.18) | < 0.001 | 0.90 (0.52–1.54) | 0.690 | 1.21 (0.81–1.80) | 0.365 | 1.55(1.02–2.36) | 0.038 | ||||
Self-assessed number of slightly hard-to-chew foods | ||||||||||||
 3 | Reference | < 0.001 | Reference | 0.532 | Reference | 0.098 | Reference | 0.006 | ||||
 2 | 1.76(1.16–2.65) | 0.007 | 0.97(0.69–1.36) | 0.853 | 1.06(0.82–1.38) | 0.645 | 1.22(0.93–1.59) | 0.149 | ||||
 1–0 | 6.31(3.09–12.87) | < 0.001 | 1.27(0.76–2.14) | 0.360 | 1.53(1.01–2.30) | 0.042 | 1.89(1.24–2.88) | 0.003 | ||||
Self-assessed number of easy-to-chew foods | ||||||||||||
3 | Reference | 0.003 | Reference | 0.116 | Reference | 0.194 | Reference | 0.798 | ||||
0–2 | 1.72(1.05–2.62) | 0.030 | 0.752(0.53–1.07) | 0.117 | 0.83(0.63–1.10) | 0.194 | 0.96(0.72–1.28) | 0.798 |  |