ICUs	Intensive Care Units;
HAP	Hospital-Acquired Pneumonia;
VAP	Ventilator-Associated Pneumonia;
CAP	Community-acquired pneumonia;
LOS	Length of Stay;
LRTIs	Lower Respiratory Tract Infections;
RTIs	Respiratory Tract Infections;
MDR	Multidrug-resistant;
AMR	Antimicrobial Resistance;
APACHE II	Acute Physiology and Chronic Health Evaluation II;
SOFA	Sequential Organ Failure Assessment;
SOFA-2	Sequential Organ Failure Assessment 2;
NLR	Neutrophil-to-Lymphocyte Ratio;
PLR	Platelet-to-Lymphocyte Ratio;
BMI	Body Mass Index;
CRP	C-reactive protein;
EUCAST	European Committee on Antimicrobial Susceptibility Testing;
MRSA	Methicillin-resistant Staphylococcus aureus;
MSSA	Methicillin-susceptible Staphylococcus aureus;
XDR	Extensively drug-resistant;
PDR	Pandrug-resistant;
AKI	Acute kidney injury;
SA-AKI	Sepsis-associated acute kidney injury;
MODS	Multiple Organ Dysfunction Syndrome;
ARDS	Acute Respiratory Distress Syndrome;
COPD	Chronic Obstructive Pulmonary Disease;
CPIS	Clinical Pulmonary Infection Score;
CRE	Carbapenem-resistant Enterobacterales