Table 2.
ADL | IADL | Physical function | |||||||
---|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
2000 %a |
Change between 2000 and 2014 Percentage point |
Annual change rate % |
2000 %a |
Change between 2000 and 2014 Percentage point |
change rate % |
2000 %a |
Change between 2000 and 2014 Percentage point |
Annual change rate % |
|
All | 5.0 | 0.9b | 1.7** | 12.6 | −0.4 | 0.3 | 61.4 | 3.2c | 2.0** |
Education | |||||||||
Less than high school | 7.3 | 3.9c | 2.2**d | 18.6 | 3.0b | 0.4 | 68.7 | 5.6c | 2.5** |
High school | 3.6 | 2.5c | 2.6**d | 9.8 | 2.7b | 0.9*d | 59.7 | 6.7c | 2.1** |
More than high school (reference) | 4.3 | −0.4 | −0.1 | 10.5 | −1.4 | −0.3 | 56.3 | 3.8b | 1.7** |
Age group | |||||||||
65–74 years | 3.1 | 0.3 | 1.5* | 7.1 | 0.1 | 0.3 | 54.0 | 3.9b | 2.0**d |
75–84 years | 5.8 | 0.5 | 1.5* | 15 | −1.7 | 0.1 | 66.2 | 2.2 | 1.7**d |
≥85 years (reference) | 11.8 | 4.3b | 2.0* | 33.3 | −0.6 | 0.7 | 80.8 | 3.5 | 3.4** |
Sex | |||||||||
Males | 4.2 | 0.3 | 0.9 | 8.9 | −0.3 | −0.1 | 54.0 | 3.0b | 2.0** |
Females (reference) | 5.6 | 1.4b | 2.0** | 15.3 | −0.3 | 0.5 | 66.0 | 3.6c | 2.1** |
The analysis included 89 568 individuals aged 65 and above. The average annual change rate was estimated using a logistic model that adjusted for age group, sex, race, Hispanic origin, education and marital status. The annual change rate by subgroup was estimated by adding an interaction term between the trend variable and the characteristic of interest in the logistic model.
P < 0.05,
P < 0.001.
The proportion was weighted using the NHIS sampling weights.
The difference between 2000 and 2014 was statistically significant at P < 0.05.
The difference between 2000 and 2014 was statistically significant at P < 0.001.
The difference in the annual rate relative to that of the reference group was statistically significant at P < 0.05.