Fig. 1
This nomogram estimates the likelihood of neonatal respiratory failure (NRF) in patients diagnosed with neonatal respiratory distress syndrome (NRDS). When using the nomogram, draw a vertical line from each variable to the points scale, noting the corresponding score, and then sum the scores for all variables to get a total. Finally, refer to the bottom of the nomogram to determine the predicted probability of NRF based on the total score. For comorbidities, 'Yes' indicates the presence and 'No' indicates the absence of the condition. For laboratory test results, 'Neg' stands for negative, and 'Pos' for positive. For treatment measures, 'Yes' indicates the measure was applied, while 'No' means it wasn't. PCO2, partial pressure of carbon dioxide; PO2, partial pressure of oxygen; Hb, hemoglobin