Table 3.

Age-, Sex-, and Race-Adjusted Associations Between Activity of Daily Living Stage and Other Person- and Environment-Related Factors

	Relative Risk Ratio (95% Confidence Interval)
Model	Stage I	Stage II	Stage III	Stage IV
Model 1: Global perceived health status (reference: excellent)
Very good	1.5 (1.2–2.0)	2.0 (1.2–3.5)	1.4 (0.7–2.5)	0.5 (0.0–8.0)
Good	2.4 (1.9–3.1)	3.8 (2.4–6.1)	2.7 (1.6–4.7)	5.7 (0.7–45.1)
Fair	5.7 (4.4–7.4)	10.3 (6.3–16.9)	8.1 (4.7–14.0)	12.1 (1.5–95.5)
Poor	14.1 (10.8–18.2)	47.9 (29.2–78.8)	48.1 (27.3–84.6)	202.3 (26.6–1,538.1)
Model 2: Presence of particular conditions (reference: no for each condition in single model)
Stroke	2.2 (1.8–2.8)	2.8 (2.1–3.6)	4.8 (3.6–6.3)	6.9 (3.5–13.5)
Hypertension	1.1 (1.0–1.3)	1.2 (1.0–1.4)	0.8 (0.7–1.1)	0.7 (0.4–1.4)
Cardiopulmonary	1.6 (1.4–1.9)	1.9 (1.6–2.3)	2.1 (1.7–2.5)	1.1 (0.5–2.5)
Osteoporosis	2.0 (1.6–2.4)	2.0 (1.5–2.6)	2.6 (1.8–3.7)	1.9 (0.7–5.4)
Diabetes mellitus	1.6 (1.3–1.9)	2.2 (1.7–2.7)	2.0 (1.5–2.6)	4.9 (2.1–11.3)
Cancer	2.6 (2.3–3.0)	2.6 (2.2–3.1)	2.1 (1.7–2.7)	1.2 (0.6–2.2)
Major mental	1.3 (1.1–1.5)	1.1 (0.9–1.4)	1.2 (0.9–1.6)	1.0 (0.4–2.9)
Dementia	3.2 (2.4–4.4)	5.9 (4.3–8.2)	15.3 (11.1–21.1)	41.9 (19.6–89.6)
Model 3: Unmet needs for accessibility features in the residence (reference: no)
≥1	5.3 (4.0–7.0)	14.9 (11.0–20.3)	17.8 (13.0–24.5)	8.7 (4.4–17.0)