Table 2.
Pre- to posttreatment histogram measurement change statistical analysis
Variable | Mean | SD | Median | Lower quartile | Upper quartile | Minimum | Maximum | P-value |
---|---|---|---|---|---|---|---|---|
Image mean | −12.911 | 14.699 | −9.390 | −18.962 | −4.161 | −46.373 | 1.459 | 0.0098 |
Image mode | −13.733 | 20.425 | −9.167 | −24.667 | −4.333 | −45.333 | 17.000 | 0.084 |
Image median | −12.367 | 14.358 | −9.833 | −18.333 | 0 | −42.333 | 3.000 | 0.0195 |
Skewness | 0.243 | 0.529 | −0.024 | −0.093 | 0.422 | −0.292 | 1.204 | 0.625 |
Raw Integrated Density | −100783 | 77363 | −71590 | −163967 | −48921 | −244398 | −3112 | 0.002 |
Note: P-values were calculated using the signed-rank test.