Research Article

Physical Health and Cognitive Function Independently Contributed to Functional Disability among Chinese Older Adults: Data from Two Asian Metropolises

Table 1

Characteristics of the participants.

Shanghai ( )Singapore ( )

Age (years)68.3 (7.8)65.6 (7.2)<0.001
Range (years)55–9355–97
 55–641167 (31.6%)1158 (48.3%)<0.001
 65–742074 (44.7%)938 (39.1%)
 75+1098 (23.7%)301 (12.6%)
Female2510 (54.1%)1495 (62.4%)<0.001
Number of chronic diseases1.29 (1.18)1.16 (1.09)<0.001
Self-rated health status*2.59 (0.77)2.38 (0.65)<0.001
 Excellent or very good164 (3.5%)145 (6.0%)<0.001
 Good2241 (48.3%)1257 (52.4%)
 Fair1569 (33.8%)925 (38.6%)
 Poor665 (14.3%)70 (2.9%)
MMSE total score26.6 (2.8)27.6 (2.2)<0.001
Functional disability (whole sample)233 (5.0%)43 (1.8%)<0.001
 Within age group 55–6415 (1.0%)14 (1.2%)0.65
 Within age group 65–7482 (4.0%)18 (1.9%)0.004
 Within age group: 75+136 (12.4%)11 (3.7%)<0.001
Disability in any of the ADL items
 Eating11 (0.2%)5 (0.2%)0.81
 Grooming29 (0.6%)8 (0.3%)0.11
 Dressing38 (0.8%)11 (0.5%)0.09
 Transferring37 (0.8%)9 (0.4%)0.04
 Walking43 (0.9%)14 (0.6%)0.13
 Toileting38 (0.8%)17 (0.7%)0.62
 Bathing162 (3.5%)9 (0.4%)<0.001
 Climbing stairs144 (3.1%)28 (1.2%)<0.001

*Range from 1 (excellent or very good) to 4 (poor), with higher value representing poorer health.
Defined as needing assistance in performing at least one of the eight Activities of Daily Living.
Data are mean (SD) or number (%).
MMSE: Mini-Mental State Examination.