614: Does NICHD category II fetal heart rate tracing in the 30 minutes prior to deliery predict fetal acidosis in preterm infants?Objective We sought to determine the ability of NICHD fetal heart rate (FHR) tracing categories to predict fetal acidosis in preterm infants during the 30 minutes ...
Interobserver agreement was assessed using the free-marginal kappa coefficient.Results Reviewers demonstrated substantial to excellent agreement on baseline rate (k = 0.97), moderate variability (k = 0.80), accelerations (k = 0.62), decelerations (k = 0.63), category (k = 0.68), and the ...
Conclusion The overwhelming majority of the tracings (79%) were category II. There is moderate agreement in the interpretation of fetal heart rate categories using the NICHD "Three-Tier Fetal Heart Rate Interpretation System". The clinical value (predictive ability) of this new classification should...
At baseline: CDC Clinical Category A (Group1=85%; Group2=92%, p=0.003); mean (卤SD) CD4+ count [Group1=404 (206), Group2=457 (228), p=0.004]; LogRNA [Group1=3.0 (1.2)), Group2=2.8 (1.1), p=0.1]; mean (卤SD) BMI-adj [Group1=23.7 (4.3), Group2=24.2 (4.8), p=...
There were no cases where a FHR tracing was classified as Category I by one examiner but Category III by another. Moderate inter-observer agreement was present for individual FHR parameters: presence of FHR accelerations (kappa 0.58), early decelerations (kappa 0.49), variable decelerations (...
When tracings were stratified by pH, inter-observer category agreement was moderate for pH > 7.1 but poor for more acidemic groups. Conclusion Pattern recognition was insufficient for reliable application of the NICHD three-tier system among naive reviewers. While agreement was generally fair to ...
Older obstetricians (residency prior to 2004) were more likely to choose Category 3 than were newer clinicians (33% vs 21%, p=0.03). There were no differences in agreement based on other demographics including provider type (CNM vs OB) or formal FHT training. Conclusions Inter-observer ...