Table 2.

Anxiety Symptoms and Time to Self-Report of Walking, Stair Climbing, and Lower Extremity Limitations in Health, Aging and Body Composition Study Participants over 5 Years (N =2,940)

		Incident Limitation %	Base Model†	+ Depressive. Symptoms‡	+ Covariates§
Self-Reported Mobility Limitation*	Anxiety Symptoms	Hazard Ratio (95% Confidence Interval)
Lower extremity	Yes	76	1.4 (1.2–1.6)	1.3 (1.2–1.5)	1.2 (1.1–1.4)
	No	62	1.0
Walking	Yes	70	1.4 (1.3–1.6)	1.3 (1.2–1.5)	1.3 (1.1–1.5)
	No	56	1.0
Stair climbing	Yes	62	1.3 (1.2–1.5)	1.2 (1.1–1.4)	1.2 (1.0–1.4)
	No	48	1.0

^*Incident limitation defined as the first report of having any difficulty walking one-quarter of a mile (walking), climbing 10 steps (stair climbing), or both (lower extremity limitation).

^†Base model includes indicator term for presence of anxiety symptoms and baseline performance score.

^‡Base model with additional adjustment for Center for Epidemiologic Study Depression Scale score ≥16 and baseline performance score.

^§Additional adjustment for sociodemographics (age, sex, race, study site, marital status) and all significant (P<.10) covariates, including comorbidities (hypertension, vision impairment, hearing impairment), management/lifestyle (drinking alcohol ≥3 times per week and feeling sleepy during the day), and baseline performance score.