Table 4. Functional transition over time according to respective physical function status and frequency of going outdoors at baseline.
| Physical function at baseline n (%) | Frequency of going outdoors at baseline |
n (%) | Disability status at follow-up | P-value for trend* | ||
| No disability | Disability | |||||
| Mobility | No Disability | Once a day or more | 955 (100%) | 900 (94.2%) | 55 ( 5.8%) | |
| 1267 (100%) | 1,129 (89.1%) | Once per 2-3 days | 128 (100%) | 109 (85.2%) | 19 (14.8%) | <0.001 |
| Once a week or less | 46 (100%) | 30 (65%) | 16 (35%) | |||
| Disability | Once a day or more | 46 (100%) | 21 (46%) | 25 (54%) | ||
| 138 (10.9%) | Once per 2-3 days | 38 (100%) | 10 (26%) | 28 (74%) | <0.001 | |
| Once a week or less | 54 (100%) | 8 (15%) | 46 (85%) | |||
| IADL | No Disability | Once a day or more | 853 (100%) | 774 (90.7%) | 79 ( 9.3%) | |
| 1259 (100%) | 985 (78.2%) | Once per 2-3 days | 101 (100%) | 84 (83.2%) | 17 (16.8%) | 0.002 |
| Once a week or less | 31 (100%) | 21 (68%) | 10 (32%) | |||
| Disability | Once a day or more | 143 (100%) | 48 (33.6%) | 95 (66.4%) | ||
| 274 (21.8%) | Once per 2-3 days | 62 (100%) | 11 (18%) | 51 (82%) | <0.001 | |
| Once a week or less | 69 (100%) | 3 ( 4%) | 66 (96%) | |||
| BADL | No Disability | Once a day or more | 965 (100%) | 927 (96.1%) | 38 ( 3.9%) | |
| 1244 (100%) | 1,160 (93.2%) | Once per 2-3 days | 134 (100%) | 120 (89.6%) | 14 (10.4%) | <0.001 |
| Once a week or less | 61 (100%) | 49 (80%) | 12 (20%) | |||
| Disability | Once a day or more | 23 (100%) | 14 (61%) | 9 (39%) | ||
| 84 ( 6.8%) | Once per 2-3 days | 25 (100%) | 6 (24%) | 19 (76%) | 0.005 | |
| Once a week or less | 36 (100%) | 8 (22%) | 28 (78%) | |||
IADL: instrumental activities of daily living, BADL: basic activities of daily living
*: p-value for Kendall rank correlation coefficient