Table 1.
Demographic characteristics of the sample (%) | Prevalence within subgroup (%) | |||
---|---|---|---|---|
Robust | Prefrail | Frail | ||
All sample | 41.8 | 51.2 | 7.0 | |
Age (years)*** | ||||
60–64 | 37.3 | 50.4 | 46.6 | 2.9 |
65–69 | 25.6 | 45.5 | 49.3 | 5.1 |
70–74 | 17.9 | 38.5 | 54.0 | 7.5 |
75–79 | 11.9 | 26.1 | 62.6 | 11.3 |
80–84 | 5.3 | 20.4 | 58.0 | 21.6 |
85+ | 2.1 | 12.5 | 55.0 | 32.5 |
Sex* | ||||
Male | 50.6 | 43.7 | 50.4 | 5.9 |
Female | 49.4 | 39.9 | 52.1 | 8.0 |
Education*** | ||||
No formal education or illiterate | 34.4 | 31.8 | 56.7 | 11.4 |
Did not finish elementary schoola | 20.2 | 40.8 | 53.2 | 6.0 |
Elementary schoolb | 25.6 | 47.1 | 47.9 | 5.1 |
Middle school | 12.3 | 51.6 | 44.4 | 4.0 |
High school or abovec | 7.4 | 56.5 | 43.3 | 0.2 |
Marital status*** | ||||
Married/living together | 77.2 | 44.7 | 50.1 | 5.2 |
Widowed | 20.6 | 32.9 | 54.1 | 13.1 |
Othersd | 2.2 | 22.5 | 66.4 | 11.1 |
Current residence*** | ||||
Urban | 42.5 | 46.5 | 48.2 | 5.3 |
Rural | 57.5 | 38.3 | 53.6 | 8.1 |
aBut capable of reading or writing.
bIncluding traditional Chinese school (i.e. Sishu).
cIncluding graduate from high school, vocational school, college, or post-graduate.
dIncluding separated, divorced, and never married.
***p < .001, **p < .01, *p < .05 for comparison in frailty status (robust, prefrail, frail) within each variable (weighted proportions).