Table 4. Number (%) of participants certified in the long-term care insurance system of Japan at baseline.
| Care level | Age category (years) | ||||
| 65–69 | 70–74 | 75–79 | 80–84 | ≥85 | |
| Men | |||||
| Uncertified | 1817 (97.6) | 2037 (95.5) | 1683 (92.6) | 808 (85.0) | 316 (65.8) |
| Support level 1a | 4 (0.2) | 7 (0.3) | 13 (0.7) | 14 (1.5) | 12 (2.5) |
| Support level 2a | 4 (0.2) | 17 (0.8) | 16 (0.9) | 22 (2.3) | 11 (2.3) |
| Care level 1b | 10 (0.5) | 21 (1.0) | 27 (1.5) | 23 (2.4) | 47 (9.8) |
| Care level 2b | 15 (0.8) | 11 (0.5) | 25 (1.4) | 34 (3.6) | 30 (6.3) |
| Care level 3b | 3 (0.2) | 15 (0.7) | 20 (1.1) | 28 (2.9) | 27 (5.6) |
| Care level 4b | 5 (0.3) | 18 (0.8) | 25 (1.4) | 11 (1.2) | 18 (3.8) |
| Care level 5b | 4 (0.2) | 6 (0.3) | 9 (0.5) | 11 (1.2) | 19 (4.0) |
| Women | |||||
| Uncertified | 2153 (98.3) | 2411 (95.0) | 2076 (90.2) | 1090 (77.2) | 520 (49.4) |
| Support level 1a | 4 (0.2) | 24 (0.9) | 41 (1.8) | 49 (3.5) | 36 (3.4) |
| Support level 2a | 7 (0.3) | 31 (1.2) | 45 (2.0) | 52 (3.7) | 59 (5.6) |
| Care level 1b | 9 (0.4) | 25 (1.0) | 57 (2.5) | 92 (6.5) | 126 (12.0) |
| Care level 2b | 3 (0.1) | 13 (0.5) | 26 (1.1) | 48 (3.4) | 93 (8.8) |
| Care level 3b | 8 (0.4) | 10 (0.4) | 20 (0.9) | 28 (2.0) | 83 (7.9) |
| Care level 4b | 5 (0.2) | 15 (0.6) | 22 (1.0) | 29 (2.1) | 70 (6.7) |
| Care level 5b | 2 (0.1) | 10 (0.4) | 15 (0.7) | 24 (1.7) | 65 (6.2) |
aThose who require support for daily activities; a higher number indicates a need for greater support.
bThose who require continuous care; a higher number indicates a need for greater continuous care.