Table 5.
Percentage in each type of IADL transition (from 1st to 2nd interview) by baseline characteristics
| Characteristics at Baseline (1st interview) |
No disability* |
Stable | Improving | Worsening | Death | P-value † |
|---|---|---|---|---|---|---|
| Entire Sample (n=5303) | 20.1 | 56.9 | 11.0 | 10.2 | 1.8 | |
| Age at baseline (n=5303) | ||||||
| 20 – 29 (n= 357) | 24.6 | 55.5 | 11.5 | 7.6 | .8 | <.001 |
| 30 – 39 (n= 1196) | 25.8 | 54.3 | 9.5 | 9.8 | .6 | |
| 40 – 49 (n= 1691) | 21.3 | 55.4 | 11.4 | 10.7 | 1.2 | |
| 50 – 59 (n= 1328) | 12.4 | 61.0 | 12.7 | 11.2 | 2.7 | |
| 60 – 64 (n= 731) | 19.7 | 58.0 | 9.4 | 9.2 | 3.7 | |
| Sex (n=5303) | ||||||
| Male (n=3018) | 22.3 | 53.2 | 11.4 | 11.2 | 2.0 | <.001 |
| Female (n=2285) | 17.2 | 61.8 | 10.5 | 8.9 | 1.4 | |
| Race/Ethnicity (n=5303) | ||||||
| White (n=3901) | 19.4 | 58.1 | 10.6 | 10.3 | 1.7 | .03 |
| Non-white (n=1402) | 22.2 | 53.7 | 12.2 | 10.1 | 1.9 | |
| Income (n=5303) | ||||||
| More than 25K (n=839) | 16.2 | 61.0 | 11.9 | 9.7 | 1.2 | .009 |
| 25K or less (n=4464) | 20.8 | 56.1 | 10.8 | 10.3 | 1.9 | |
| Education Level (n=5224) | ||||||
| Less than HS (n=1822) | 19.6 | 56.1 | 11.6 | 10.9 | 1.8 | .49 |
| HS or more (n=3402) | 20.7 | 57.2 | 10.7 | 9.8 | 1.7 | |
| Marital Status (n=5300) | ||||||
| Not married (n=3456) | 22.0 | 55.8 | 10.4 | 10.0 | 1.7 | <.001 |
| Married (n=1844) | 16.4 | 58.9 | 12.3 | 10.6 | 1.8 | |
| Smoking status (n=5281) | ||||||
| Doesn’t smoke (n=3258) | 18.5 | 59.0 | 11.2 | 9.7 | 1.7 | <.001 |
| Smokes (n=2023) | 22.9 | 54.0 | 10.9 | 11.1 | 1.2 | |
| Body Mass Index (n=5133) | ||||||
| Underweight (n=165) | 11.5 | 62.4 | 9.7 | 12.7 | 3.6 | <.001‡ |
| Normal (n=1476) | 22.8 | 54.3 | 11.5 | 9.7 | 1.7 | |
| Overweight (n=1614) | 21.6 | 56.9 | 10.5 | 10.2 | .9 | |
| Obese (n=1878) | 17.5 | 58.8 | 11.7 | 10.3 | 1.7 | |
| # of comorbidities (n=5290) | ||||||
| 0 (n=356) | 28.9 | 54.2 | 6.7 | 9.3 | .8 | <001 |
| 1 (n=1127) | 30.3 | 50.6 | 8.7 | 9.9 | .4 | |
| 2 (n=1183) | 20.4 | 56.3 | 11.2 | 10.7 | 1.4 | |
| 3 (n=1004) | 18.5 | 58.7 | 12.3 | 9.2 | 1.4 | |
| 4 – 12 (n=1620) | 12.0 | 61.7 | 12.7 | 10.9 | 2.7 | |
| General Health (n=5274) | ||||||
| Good-Excellent (n=2283) | 28.3 | 52.7 | 7.9 | 10.5 | .7 | <.001 |
| Fair or poor (n=2991) | 14.0 | 60.3 | 13.4 | 10.1 | 2.2 | |
| Living Situation (n=5303) | ||||||
| With others (n=4056) | 18.2 | 58.1 | 11.7 | 10.3 | 1.6 | <.001 |
| Living alone (n=1247) | 26.3 | 52.9 | 8.7 | 9.9 | 2.2 | |
| Setting (n=5303) | ||||||
| Community (n=5274) | 20.1 | 57.1 | 11.1 | 10.2 | 1.5 | |
| Both (n=19) | 21.1 | 26.3 | 5.3 | 10.5 | 36.8 | |
| Facility (n=10) § | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | |
*
No disability reported on both years
†
P-value from Chi-square test
‡
1 cells with expected value less than 5
§
Participants in Facilities for the entire year usually did not answer the question about IADL.