Research Article

Neutrophil-Lymphocyte Ratio in Predicting Infective Endocarditis: A Case-Control Retrospective Study

Table 5

Clinical and hematologic data compared between different clinical outcomes of IE patients.

ParametersGood outcome ()Bad outcome () value

Age0.074
Sex (male)377 (70.2%)86 (60.99%)0.036
Comorbid conditions
 Coronary artery disease58 (10.81%)16 (11.34%)0.853
 Nephropathy62 (11.55%)22 (15.6%)0.193
 Diabetes77 (14.34%)18 (12.76%)0.632
 Pulmonary infection9 (1.68%)3 (2.13%)0.721
 Cardiac insufficiency103 (19.18%)21 (14.89)0.241
 Hypertension29 (5.4%)10 (7.09%)0.443
 Brain disease7 (1.3%)2 (1.42%)1
Predisposing factors
 Rheumatic heart disease78 (14.53%)17 (12.06%)0.452
 Congenital heart disease68 (12.66%)17 (12.06%)0.847
 Prosthetic valve105 (19.55%)28 (19.86%)0.935
 Degenerative valve disease75 (13.97%)14 (9.93%)0.206
 Implantable cardiac devices32 (5.96%)10 (7.09%)0.619
Pathogens
 Culture positive170 (31.66%)61 (43.26%)0.010
 Culture negative367 (68.24%)80 (56.74%)
 Gram-positive bacteria152 (28.31%)47 (33.33%)0.243
 Gram-negative bacteria12 (2.23%)5 (3.55%)0.375
 Fungus6 (1.12%)9 (6.38%)0.001
Inflammatory markers
 NEU<0.001
 LYM0.961
 NLR<0.001
 PCT (μg/L)<0.001
 CRP (mg/L)<0.001