Table 4.

Relative Odds of Newly Recognized Mobility Limitation in 70- to 79-Year-Old Men and Women Associated With Inability to Complete or Poor Performance on the Long Distance Corridor Walk (LDCW) and Time to Walk 400 Meters.

	Relative Odds of Recognized Mobility Limitation in Test-Eligible Persons Completing Versus Not Completing or Performing Poorly on the LDCW
	Men (N = 1297)			Women (N = 1358)
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Did not complete or poor performance on the LDCW	4.08 (2.86–5.80)	2.66 (1.79–3.94)	3.92 (3.04–5.07)	2.28 (1.70–3.05)
Age, y	–	1.04 (0.99–1.10)	–	1.02 (0.97–1.06)
Black race	–	0.95 (0.69–1.30)	–	0.94 (0.71–1.24)
Walks < 30 min/wk	–	1.64 (1.22–2.21)	–	1.29 (0.99–1.67)
Current/recent smoker	–	1.09 (0.79–1.49)	–	1.11 (0.83–1.47)
Obese	–	1.61 (1.15–2.25)	–	1.77 (1.34–2.35)
Reports walking 1 mile is other than “very easy”	–	2.43 (1.79–3.30)	–	3.39 (2.51–4.58)
Gait speed < 1.0 m/s	–	2.15 (1.44–3.20)	–	1.33 (0.99–1.79)
	Relative Odds of Recognized Mobility Limitation for Each Additional 30 Seconds Needed to Walk 400 Meters
	Men (N = 1188)			Women (N = 1138)
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Each 30 seconds over 5 minutes	1.77 (1.59–1.96)	1.65 (1.46–1.88)	1.54 (1.41–1.67)	1.37 (1.23–1.53)
Age, y	–	1.00 (0.95–1.06)	–	0.99 (0.94–1.04)
Black race	–	0.80 (0.56–1.14)	–	0.84 (0.61–1.15)
Walks < 30 min/wk	–	1.41 (1.01–1.96)	–	1.07 (0.79–1.43)
Current/recent smoker	–	1.01 (0.72–1.43)	–	0.95 (0.68–1.32)
Obese	–	1.37 (0.94–2.01)	–	1.65 (1.20–2.28)
Reports walking 1 mile is other than “very easy”	–	1.87 (1.32–2.61)	–	2.87 (2.07–4.00)
Gait speed < 1.0 m/s	–	1.15 (0.71–1.86)	–	0.96 (0.67–1.38)

Notes: Newly recognized mobility limitation is defined as two consecutive semi-annual reports within 2 years of difficulty walking one-quarter mile or climbing one flight of stairs. Poor performance on the Long Distance Corridor Walk constitutes needing more than 7 minutes to walk 400 meters “as quickly as possible.”

OR = odds ratio; CI = confidence interval.