| ANC | Absolute neutrophil count |
| BC | Blood culture |
| BW | Birth weight |
| CRP | C-reactive protein |
| CSF | Cerebrospinal fluid |
| CVC | Central venous catheter |
| EOS | Early-onset neonatal sepsis |
| GA | Gestational age |
| HABSI | Healthcare-associated bloodstream infection |
| HR | Heart rate |
| HRC | Heart rate characteristics |
| HSS | Hematologic scoring system |
| I:M ratio | Immature to mature neutrophil ratio |
| I:T ratio | Immature to total neutrophil ratio |
| LAT | Latex agglutination test |
| LBW | Low birth weight |
| LOS | Late-onset neonatal sepsis |
| mESR | Micro erythrocyte sedimentation rate |
| ML | Machine learning |
| NBW | Normal birth weight |
| NICU | Neonatal Intensive Care Unit |
| NLR | Negative likelihood ratio |
| NOSEP score | Nosocomial Sepsis Predictive Score |
| NPV | Negative predictive value |
| NS | Neonatal sepsis |
| PLR | Positive likelihood ratio |
| PLT | Platelet |
| PMN | Polymorphonuclear |
| PPV | Positive predictive value |
| Se | Sensitivity |
| Sp | Specificity |
| TPN | Total parenteral nutrition |
| UAC | Umbilical artery catheter |
| UVC | Umbilical vein catheter |
| VLBW | Very low birth weight |
| WBC | White blood cell |