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Objective This study aimed to determine if laboratory inflammatory markers can predict critical disease in symptomatic COVID-19 pregnant women. Study Design Multicenter, retrospective cohort study of all pregnant women presenting to New York City Health + Hospitals emergency departments from March 1 to May 30, 2020. We assessed all symptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) positive pregnant women with room air oxygen saturation Results A total of 498 of 5,002 pregnant women were SARS-CoV-2 RT-PCR positive of which 77 presented with hypoxemia. The absolute lymphocyte count (ALC) and neutrophil to lymphocyte ratio (NLR) were highly sensitive for progression to severe illness. ROC curve analysis identified predictive cutoffs: ALC 8.1 (100% sensitivity, 70% specificity, AUC = 0.86 (95% CI: [0.76–0.96]). Conclusion ALC and NLR on presentation are sensitive markers of progression to critical COVID-19 disease in symptomatic pregnant women. This finding provides a practical, rapid method for assessment and can assist clinicians with decision-making regarding triage, level of care, and patient management. Key Points

Two groups of 58 gestational diabetic women matched for age, prepregnancy weight, height, and parity were studied. The home glucose monitoring study group performed fasting and 1-hour postprandial capillary blood glucose testing after every meal. The control group was followed by conventional treatment. The incidence of macrosomia (birth weight of greater than or equal to 4000 gm) and large (greater than or equal to 90%) for gestational age infants was significantly reduced in the home glucose monitoring group. The mean birth weight of the study group was 3231 +/- 561 gm, while that of the control group was 3597 +/- 721 gm (p less than 0.002). Significantly more patients in the home glucose monitoring group were receiving insulin therapy (50% versus 21%). We believe that intensive home glucose monitoring will allow for the early identification of those gestational diabetic patients needing insulin and thus reduce the incidence of macrosomia and large for gestational age infants.