Original fullPIERS Logistic Regression Equation | Extended fullPIERS Logistic Regression Equation |
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logit (pi) = 2·68 + (− 5·41 × 10− 2; gestational age at eligibility) + 1·23(chest pain or dyspnea)+ (− 2·71 × 10− 2; creatinine) + (2·07 × 10− 1; platelets) + (4·00 × 10− 5; platelets2)+ (1·01 × 10− 2; aspartate transaminase (AST))+ (− 3·05 × 10− 6; AST2) + (2·50 × 10− 4; creatinine×platelet) + (− 6·99 × 10− 5; platelet×AST) + (− 2·56 × 10− 3; platelet×SpO2) | logit (pi) = − 1.34 + (0.25 × fullPIERS model linear predictor) + (− 0.01 × PlGF) Odds ratio (adverse maternal outcome) = 0.26 + (1.28 × fullPIERS model linear predictor [95% CI 1.23–1.33]) + (0.99 × PlGF [95% CI 0.98–0.99]) |