Table 1:
Comparison of baseline participant characteristics across levels of aberrant movement summary scores.
| Entire Sample (n=194) (mean ± SD or %) |
Aberrant movement Score of 0 (n=72) (mean ± SD or %) |
Aberrant movement Score of 1 (n=74) (mean ± SD or %) |
Aberrant movement Score of 2 (n=42) (mean ± SD or %) |
Aberrant movement Score of 3 (n=6) (mean ± SD or %) |
Main effect P - value |
Post-hoc P - value‡ |
|
|---|---|---|---|---|---|---|---|
| Age (years)† | 69.6±6.5 | 68.2±5.8 | 70.6±6.8 | 70.1±7.2 | 69.2±5.0 | 0.164 | - |
| Sex (female) | 49% | 50% | 51.3% | 42.9% | 50% | 0.843 | - |
| BMI (kg/cm2) | 29.4±5.6 | 29.3±5.6 | 29.2±5.8 | 30.2±5.4 | 28.0±3.8 | 0.739 | - |
| Composite LBP intensity (0–10) | 2.9±1.3 | 2.8±1.2 | 2.7±1.2 | 3.2±1.3 | 4.0±2.3 | 0.039* | - |
| Number of prior falls | 1.0±2.6 | 1.2±2.4 | 0.7±1.7 | 1.0±3.9 | 1.3±2.4 | 0.738 | - |
| Number of anxiolytics | 0.1±0.3 | 0.03±0.2 | 0.1±0.3 | 0.1±0.4 | 0.0±0.0 | 0.171 | - |
| Number of hip OA signs and symptoms† | 3.0±1.3 | 2.9±1.2 | 3.1±1.2 | 3.1±1.6 | 3.5±2.1 | 0.704 | - |
| FSST (seconds) | 10.2±2.7 | 9.6±2.3 | 10.1±2.4 | 11.2±3.3 | 11.9±3.5 | 0.006* | 0.009*a |
| Number of prospective falls | 1.0±1.8 | 0.7±1.2 | 1.2±2.3 | 0.9±1.4 | 2.7±2.6 | 0.027* | 0.042*b |
Abbreviations: BMI = body mass index; FSST = Four-Square Step Test; LBP = low back pain; OA = osteoarthritis; SD = standard deviation.
†
= violated Levene’s test based on median;
*
= p<0.05;
‡
= post-hoc p-values of significant differences;
*a
= significant difference between aberrant movement summary scores of 2 and 0;
*b
= significant difference between aberrant movement summary scores of 3 and 0