From: Mind your hand during the energy crunch: Functional Outcome of Circular Saw Hand Injuries
 |  | Grip Strength (kg) | Tip Pinch (kg) | Key Pinch (kg) | Three-Point Pinch (kg) | ||||
---|---|---|---|---|---|---|---|---|---|
Injury Severity (number) | Â | Injured Hand | Uninjured Hand | Injured Hand | Uninjured Hand | Injured Hand | Uninjured Hand | Injured Hand | Uninjured Hand |
Grade 1 (n = 7) | Mean | 44.33 | 43.20 | 9.01 | 9.26 | 11.06 | 11.07 | 11.07 | 10.37 |
 | SD | 9.87 | 8.53 | 2.66 | 2.37 | 2.15 | 2.08 | 3.04 | 2.19 |
 | Mean Difference (injured-uninjured) | +1.13 | -0.24 | -0.01 | +0.70 | ||||
 | p | 0.435 | 0.553 | 0.957 | 0.216 | ||||
Grade 2 (n = 40) | Mean | 41.71 | 48.35 | 7.74 | 9.34 | 9.62 | 10.91 | 8.5 | 9.39 |
 | SD | 13.06 | 11.04 | 3.59 | 2.85 | 3.18 | 2.72 | 2.54 | 2.29 |
 | Mean Difference (injured-uninjured) | -6.64 | -1.60 | -1.29 | -0.89 | ||||
 | p | < 0.001 | < 0.001 | < 0.001 | 0.004 | ||||
Grade 3 (n = 67) | Mean | 35.38 | 45.13 | 7.16 | 9.54 | 9.00 | 11.27 | 7.56 | 9.97 |
 | SD | 12.87 | 9.34 | 3.84 | 3.61 | 3.98 | 3.07 | 3.52 | 3.61 |
 | Mean Difference (injured-uninjured) | -9.76 | -2.39 | -2.27 | -2.41 | ||||
 | p | < 0.001 | < 0.001 | < 0.001 | < 0.001 | ||||
Total (n = 114) | Mean | 38.29 | 46.02 | 7.50 | 9.43 | 9.33 | 11.05 | 8.12 | 9.74 |
 | SD | 13.09 | 10.09 | 3.70 | 3.25 | 3.63 | 2.90 | 3.27 | 3.09 |
 | Mean Difference (injured-uninjured) | -7.73 | -1.94 | -1.74 | -1.66 | ||||
 | p | < 0.001 | < 0.001 | < 0.001 | < 0.001 |