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Table 3 Poisson regressions of the relationship between multiple falls and knee pain; univariate models with a single covariate, followed by multivariate models, and p values associated with the independent samples t-test of each variable with knee pain and faller group status

From: Reduced strength, poor balance and concern about falls mediate the relationship between knee pain and fall risk in older people

 RR (95% confidence interval)P knee painP falls
Univariate2.00 (1.28–3.14)  
Sway Floor Eyes Closed1.86 (1.19–2.93)0.0120.002
Coordinated Stability1.91 (1.21–3.01)0.0140.066
Knee Torque1.81 (1.14–2.88)0.0480.039
FES-I1.69 (1.06–2.69)0.001< 0.001
Timed Up and Go1.97 (1.25–3.08)0.0010.099
BMI1.88 (1.19–2.96)< 0.0010.075
Model 1   
FES-I   
BMI1.63 (1.02–2.61)  
Model 2   
FES-I   
Knee Torque   
BMI1.57 (0.97–2.54)  
Model 3   
FES-I   
Knee Torque   
Sway Floor Eyes Closed   
BMI1.55 (0.96–2.51)  
  1. BMI Body mass index, FES-I Falls Efficacy Scale International
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