Prediction of walking speed one year following hip fracture based on pre-fracture assessments of mobility and physical activity

Table 3 Predictors of walking speed one year following hip fracture from recalled self-reported measures (n = 151)

Variables		Crude Estimates				Adjusted Estimates
Variables	B	Beta	95% CI	P	B	Beta	95% CI	P
Walking speed (m/sec) at 12 months
Age (y)	− 0.007	− 0.171	[-0.014, 0.000]	0.042	− 0.007	− 0.169	[-0.013, − 0.001]	0.020
Sex (ref. male)	− 0.048	− 0.061	[-0.149, 0.052]	0.344
BMI	0.001	− 0.007	[-0.012, 0.011]	0.909
Education (y) (range < 7 - ≥17)	0.021	0.085	[-0.010, 0.051]	0.179
Married/cohabiting	0.017	0.028	[-0.064, 0.098]	0.684
Number of comorbidities	− 0.060	− 0.237	[-0.092, − 0.028]	< 0.001	− 0.055	− 0.216	[-0.084, − 0.025]	< 0.001
Recalled self-reported variables
Nursing at home	− 0.001	− 0.005	[-0.032, 0.029]	0.943
Assistance from family member	− 0.006	− 0.028	[-0.036, 0.024]	0.689
‘Walking Habits’ question “frequency of outdoor walks”	0.008	0.038	[-0.028, 0.043]	0.668
‘Walking Habits’ question “duration of regular walks”	0.004	0.011	[-0.053, 0.060]	0.900
Use of a walking aid outdoors	0.116	0.174	[0.027, 0.260]	0.110
Use of a walking aid indoor	− 0.072	− 0.102	[-0.228, 0.083]	0.357
NMS	0.035	0.208	[-0.019, 0.089]	0.207	0.054	0.326	[0.026, 0.083]	< 0.001
UCLA Activity Scale	0.032	0.186	[-0.004, 0.067]	0.084	0.042	0.246	[0.011, 0.072]	0.007
FES-I	− 0.002	− 0.047	[-0.007, 0.004]	0.602

Note Unstandardized B, Standardized Coefficients Beta, 95% CI, and P value given for crude estimates and adjusted estimates in the multiple regression analyses. The total model explained 54% of the variance in walking speed at 12 months (R²= 0.537)
BMI = Body Mass Index. NMS = New Mobility Score. UCLA Activity Scale = University of California, Los Angeles Activity Scale. FES-I = Fall Efficacy Scale International

ISSN: 1471-2318