A
Here’s a clear, structured summary and interpretation of the study you provided:
Study Title
Comparison of Pediatric Sequential Organ Failure Assessment (pSOFA) and quick Sequential Organ Failure Assessment (qSOFA) Scores in Predicting Morbidity and Mortality in Children Admitted to PICU in a Tertiary Care Hospital in Uttarakhand: A Retrospective Diagnostic Accuracy Study
Paul V, Rathaur VK, Kumar M, Vignesh NK, Bhat NK. J Pediatric Adv Res. 2025;4(3):1-5.
Objective
To evaluate and compare the ability of pSOFA and qSOFA scores in predicting:
Mortality in children admitted to PICU.
Morbidity, measured as prolonged ICU stay (>7 days).
The study also aimed to see if qSOFA, a quicker bedside tool, can serve as a reliable alternative to pSOFA, which requires laboratory investigations.
Methods
Design: Retrospective diagnostic accuracy study.
Setting: PICU, AIIMS Rishikesh, Uttarakhand.
Duration: August 2018 – May 2021.
Sample: 154 children (<18 years) admitted to PICU.
Exclusion: Discharged against medical advice.
Data Collected:
Demographics: age, sex
Clinical: oxygen requirement, ventilation, inotropes, Glasgow Coma Scale
Labs: creatinine, bilirubin, platelets
Outcomes: mortality, ICU stay duration
Scoring Systems:
pSOFA: Uses lab + clinical parameters (respiratory, cardiovascular, renal, hepatic, neurological, hematological). Cutoff ≥8 used for mortality prediction.
qSOFA: Clinical parameters only (respiratory distress, low BP, altered GCS). Cutoff ≥2 used.
Analysis:
ROC curves and AUROC for predictive accuracy
Sensitivity, specificity, positive and negative predictive values
Key Results
Demographics
Mean age: 6.83 years
Males: 45.4%, Females: 54.5%
112/154 children required oxygen; 61 needed ventilation; 47 required inotropes; 103 had altered sensorium
Mortality Prediction
| Score | Sensitivity | Specificity | AUROC | PPV | NPV |
|---|---|---|---|---|---|
| pSOFA ≥8 | 70.45% | 89.09% | 0.936 | 72.09% | 88.28% |
| qSOFA ≥2 | 90.9% | 46.63% | 0.779 | 40.4% | 92.7% |
Interpretation:
pSOFA is more specific and accurate for mortality prediction.
qSOFA is more sensitive but less specific; good for initial triage.
Morbidity Prediction (ICU stay >7 days)
| Score | Sensitivity | Specificity | AUROC | PPV | NPV |
|---|---|---|---|---|---|
| pSOFA ≥8 | 18.75% | 95.16% | 0.528 | 75% | 60.2% |
| qSOFA ≥2 | 75% | 62.9% | 0.566 | 61.01% | 76.4% |
Interpretation:
Both scores are poor predictors of prolonged ICU stay.
Non-medical factors (bed availability, lab delays) likely confounded results.
Discussion
Mortality Prediction:
pSOFA >8 had excellent discriminatory ability (AUROC 0.936).
qSOFA ≥2 is a rapid bedside tool with reasonable sensitivity for early detection but lower specificity.
Previous SIRS criteria were less accurate and overly sensitive, leading to overdiagnosis.
Morbidity Prediction:
Both scores had low AUROC (~0.53–0.57), indicating poor predictive power for prolonged ICU stay.
Clinical Implication:
qSOFA can be used immediately upon ICU admission for quick triage.
pSOFA should follow once lab results are available to confirm severity and counsel families.
Strengths:
Broad inclusion of different pediatric illnesses (pneumonia, meningitis, UTI, nephrotic, myocarditis, malignancy).
Real-world applicability in tertiary care PICU.
Limitations:
Single-center, retrospective
Modest sample size (154)
Confounders affecting morbidity prediction
Conclusion
pSOFA is superior for mortality prediction in PICU children.
qSOFA provides a quick, clinically useful estimate of severity at first contact.
Neither score reliably predicts prolonged ICU stay.
Using both sequentially optimizes triage and family counseling.
Takeaway for Clinicians
Step 1: Use qSOFA at presentation for rapid risk stratification.
Step 2: Calculate pSOFA after lab results for accurate mortality assessment.
Step 3: Interpret prolonged ICU stay cautiously; clinical context and logistics matter.
If you want, I can also make a concise visual table comparing pSOFA vs qSOFA performance for mortality and morbidity, which makes it easier to remember for clinical practice or exams.
Do you want me to create that?
No comments:
Post a Comment