RESUMEN
OBJECTIVE: To evaluate whether progression to a high-risk situation is predictable in women with gestational hypertension (GH) or mild pre-eclampsia (PE) at term. METHODS: Women with a singleton pregnancy, a fetus in cephalic position, between 36 and 41 weeks of gestation, complicated by GH or mild PE that were managed expectantly, were selected from the HYPITAT trial. We evaluated the predictability of progression to a high-risk situation. Logistic regression was used to determine the predictive value of clinical characteristics or laboratory findings and to generate a prediction model for progression to a high-risk situation. The predictive value of this model was assessed with receiver-operating characteristic (ROC) analysis, calibration and internal validation. RESULTS: We included 703 women, of whom 244 (34.7%) had progression to a high-risk situation. After multivariable analysis, nulliparity (OR 1.87), maternal age (OR 1.05 per year), gestational age (OR 0.88 per week), previous abortion (OR 1.26), ethnicity (OR 2.05 for non-Caucasian ethnicity), diastolic (OR 1.04 per mmHg), systolic blood pressure (OR 1.02 per mmHg) and the laboratory parameters proteinuria, haemoglobin, platelets, uric acid and alanine aminotransferase were included in the final model. The area under the ROC curve of this model was 0.71 (95% CI, 0.67-0.74). Even though the goodness of fit was moderate (P=0.40), internal validation showed the model could hold in the overall population. CONCLUSION: In the prediction of progression to a high-risk situation, in women with GH or mild PE at term, a distinction can be made between women with a low risk and women with high risk.
Asunto(s)
Edad Gestacional , Hipertensión Inducida en el Embarazo/diagnóstico , Preeclampsia/diagnóstico , Adulto , Estudios de Cohortes , Progresión de la Enfermedad , Femenino , Humanos , Hipertensión Inducida en el Embarazo/terapia , Trabajo de Parto Inducido , Preeclampsia/terapia , Embarazo , Resultado del Embarazo , Pronóstico , Curva ROC , Medición de Riesgo , Índice de Severidad de la Enfermedad , Adulto JovenRESUMEN
OBJECTIVE: In a recent randomized controlled trial we found that induction of labor in women with gestational hypertension (GH) or mild (preeclampsia) PE at term prevented high risk situations without increasing the cesarean section (CS) rate. We aimed to assess the predictability of the risk of CS. STUDY DESIGN: We used multivariable logistic regression analysis to identify predictive factors. Two models were created, one including antepartum and one including antepartum and intrapartum variables. The predictive capacity was assessed with ROC analysis and calibration. RESULTS: 126 (17%) of the 756 women delivered by CS. In multivariable analysis parity (OR 5.4), ethnicity (OR 2.4), previous miscarriage (OR 1.7), creatinine (OR 1.02), proteinuria (OR 2.4), cervical length (OR 1.02), engagement (OR 0.5) and dilatation (OR 0.7) were independent antepartum predictors. Intrapartum variables were parity (OR 3.6), ethnicity (OR 1.9), previous miscarriage (OR 1.5), gestational age at delivery (OR 1.2), antibiotic use (OR 8.0), disease progression (OR 2.4), uric acid (OR 1.4), proteinuria (OR 3.50) and dilatation (OR 0.76). Both models showed good discrimination (AUC 0.74 and 0.80) but calibration was moderate (Hosmer-Lemeshow P-value 0.42 and 0.70). CONCLUSION: In women with GH or mild PE at term, the risk of CS can be predicted.