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Fit parameters for the iPRC
| Parameter | Value | Confidence interval, 95% |
| a0 | 0.0556 | (0.041, 0.071) |
| a1 | −0.0612 | (−0.095, −0.028) |
| a2 | −0.00686 | (−0.029, 0.016) |
| a3 | −0.00553 | (−0.012, 0.0012) |
| b1 | −0.0333 | (−0.078, 0.011) |
| b2 | 0.0154 | (−0.00075, 0.032) |
| b3 | −0.00149 | (−0.012, 0.0086) |
| w | 5.85 | (4.72, 6.98) |
