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Table 4 Multiple linear regression analysis to assess the most significant predictors of stone composition

From: Can stone composition be predicted by plain X-ray and/or non-contrast CT? A study validated by X-ray diffraction analysis

  CaPO4 COM COD Struvite Urate
  P value P value P value P value P value
HU 0.143 0.000** 0.095 0.001** 0.000**
Dense opaque 0.091 0.001** 0.17 0.25 0.414
Opaque 0.35 0.416 0.225 0.935 0.696
Faint opaque 0.321 0.12 0.514 0.029* 0.578
Lucent 0.651 0.264 0.366 0.069 0.011*
  1. *Statistically significant difference (P level < 0.05)
  2. **Statistically significant difference (P level < 0.01)
  3. HU Hounsfield unit, CaPO4 basic calcium phosphate, COM calcium oxalate monohydrate, COD calcium oxalate dihydrate