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Linear regression analysis of blood urea and salivary urea levels in different study groups
| Group | Constant (a) | Regression Co-efficient (b) | p-Value | Regression Equation (y = a+bx) |
| Control (C) | 31.58 | -0.04 | 0.90 | Blood urea = 31.58 – (0.04 X salivary urea) |
| Haemodialysis group (A) | 34.06 | +0.38 | 0.021 | Blood urea = 34.06 + (0.38 X salivary urea) |
| Transplant group (B) | 29.99 | +0.37 | 0.0010 | Blood urea = 29.99 + (0.37 X salivary urea) |
