Table 2.
Objective activity and patient reported measures by patient clusters of activity before and after total joint arthroplasty.
| Activity or patient reported measure | Minimally changed activity |
Decreased activity |
P-value | ||
|---|---|---|---|---|---|
| n = 15 | IQR | n = 5 | n = 15 | ||
| ΔSteps | 286.1 | [−14.9 to 1587.3] | -3004.1 | −[4485.9 to 2658.8] | .001 |
| ΔMiles walked | 0.1 | [0.0 to 0.6] | -1.4 | −[2.0 to 1.4] | .001 |
| ΔFloors climbed | 0.2 | [−0.9 to 3.0] | -2.2 | [−8.7 to 0.7] | .407 |
| ΔCalories (Kcal) | 10.4 | [−79.0 to 94.8] | -321.1 | −[568.2 to 286.2] | .008 |
| ΔVery active (min) | 0.1 | [−0.5 to 0.3] | -5.1 | −[6.3 to 5.0] | .026 |
| ΔFairly active (min) | 1.8 | [−1.6 to 2.6] | -9.1 | −[20.3 to 7.8] | .016 |
| ΔLightly active (min) | 7.7 | [−21.6 to 35.3] | -58.4 | −[83.2 to 41.1] | .016 |
| ΔSedentary (min) | 16.4 | [−106.2 to 150.5] | 85.8 | [65.4 to 131.6] | .089 |
| Pain baseline | 5.0 | [3.0 to 7.0] | 7.5 | [6.0 to 8.0] | .141 |
| ΔPain 6 wk | -2.0 | [−3.0 to 2.0] | -5.5 | −[4.0 to 6.0] | .030 |
| VR12 Physical baseline | 29.8 | [25.3 to 36.9] | 40.8 | [26.5 to 41.9] | .239 |
| ΔVR12 Physical 6 wk | 6.1 | [0.3 to 10.0] | 5.4 | [5.0 to 5.8] | .855 |
| VR12 Mental baseline | 47.3 | [40.7 to 59.3] | 44.9 | [43.5 to 57.3] | .760 |
| ΔVR12 Mental 6 wk | 2.5 | [−4.4 to 5.5] | 7.2 | [6.3 to 8.0] | .144 |
| HOOS Jr baseline | 56.0 | [56.0 to 58.9] | 53.0 | [43.3 to 61.8] | .644 |
| ΔHOOS Jr 6 wk | 20.8 | [11.5 to 24.8] | 30.5 | [30.5 to 30.5] | .275 |
| KOOS Jr baseline | 44.8 | [34.2 to 52.5] | 55.8 | [50.0 to 61.6] | .243 |
| ΔKOOS Jr 6 wk | 18.2 | [11.3 to 30.0] | 23.3 | [23.3 to 23.3] | .770 |
Bold values indicate significance at P-value < .05.
IQR, interquartile range; ΔQ change between preoperative and postoperative daily median value; VR12, Veteran Rand 12-item index.