Table 2. Baseline characteristics of nondisabled participants in the Tokyo Metropolitan Institute of Gerontology-Longitudinal Study on Aging (TMIG-LISA) in 1994 (n = 513)a .
Men | Women | ||||||
Age group | 67–69 | 70–74 | 75+ | 67–69 | 70–74 | 75+ | |
Body mass index (kg/m2) |
n | 72 | 85 | 57 | 96 | 104 | 69 |
Mean | 22.2 | 21.7 | 21.9 | 23.4 | 23.4 | 22.9 | |
(SD) | (2.8) | (2.8) | (2.9) | (3.7) | (3.8) | (3.0) | |
Range | 16.8–29.6 | 15.7–32.0 | 17.4–28.8 | 15.0–32.3 | 15.8–35.1 | 16.0–29.3 | |
Chronic medical conditionb |
n | 78 | 88 | 63 | 98 | 111 | 74 |
% present | 9.0 | 10.2 | 6.4 | 12.2 | 9.0 | 13.5 | |
Complaint of pain | n | 79 | 88 | 63 | 98 | 111 | 74 |
% yes | 53.2 | 47.7 | 52.4 | 67.4 | 80.2 | 68.9 | |
History of hospitalization during the past year |
n | 79 | 88 | 63 | 98 | 111 | 74 |
% yes | 2.5 | 4.6 | 11.1 | 10.2 | 14.4 | 14.9 | |
Depressive symptomatology |
n | 77 | 88 | 63 | 98 | 110 | 74 |
% present | 24.7 | 23.9 | 28.6 | 25.5 | 33.6 | 25.7 | |
Intellectual activity | n | 79 | 88 | 63 | 98 | 111 | 74 |
% poor | 44.3 | 35.2 | 38.1 | 41.8 | 55.9 | 54.1 | |
Current alcohol consumption |
n | 79 | 88 | 63 | 98 | 111 | 74 |
% yes | 63.3 | 69.3 | 54.0 | 24.5 | 16.2 | 21.6 | |
Current smoking habit | n | 79 | 88 | 63 | 98 | 111 | 74 |
% yes | 39.2 | 39.8 | 30.2 | 1.0 | 0.9 | 0.0 | |
Serum albumin (g/L) | n | 72 | 85 | 57 | 94 | 104 | 69 |
Mean | 41.0 | 40.7 | 40.0 | 42.2 | 41.8 | 41.6 | |
(SD) | (2.3) | (2.3) | (1.9) | (2.2) | (2.3) | (2.4) | |
Range | 34–47 | 34–47 | 35–44 | 34–47 | 37–47 | 32–48 | |
Hand-grip strength (kg) | n | 72 | 85 | 56 | 95 | 103 | 69 |
Mean | 34.4 | 33.4 | 30.8 | 23.2 | 22.2 | 19.9 | |
(SD) | (6.7) | (5.7) | (5.4) | (4.0) | (4.3) | (5.4) | |
Range | 9–47 | 20–51 | 19–42 | 11–32 | 12–32 | 5–31 | |
Fast walking speed (m/sec) |
n | 71 | 84 | 55 | 94 | 102 | 68 |
Mean | 2.08 | 2.00 | 1.85 | 1.82 | 1.61 | 1.48 | |
(SD) | (0.41) | (0.42) | (0.35) | (0.32) | (0.34) | (0.42) | |
Range | 1.19–3.13 | 0.29–2.94 | 1.19–2.78 | 0.61–2.50 | 0.63–2.78 | 0.38–2.63 |
aThe cohort comprised participants who were independent in activities of daily living and instrumental activities of daily living in the 1994 survey and participated in the survey conducted through organized gatherings at municipal community centers.
bDefined as a history of hypertension, diabetes, or heart disease.
SD = standard deviation.