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Table 1 Comparison of patient characteristics and inflammatory and nutritional parameters between the ≥65- and <65-year-old groups

From: Nutritional parameters affecting severity of pneumonia and length of hospital stay in patients with pneumococcal pneumonia: a retrospective cross-sectional study

  ≥65 years (n = 36) <65 years (n = 21) P-value
Patients’ characteristics    
 Mean age (years) 80.1 ± 7.7 44.5 ± 13.9 <0.001*
 Sex (male/female) 13/23 12/9 0.123
 Body mass index (kg/m2) 18.7 ± 4.1 19.6 ± 2.1 0.284
 CURB-65 score on admission 1.9 ± 0.9 0.5 ± 0.9 <0.001*
 PSI on admission 105.6 ± 24.5 28.2 ± 46.2 <0.001*
Inflammatory parameters    
 White blood cell count (/mm3) 12,750 ± 6490 13,300 ± 5460 0.744
 C-reactive protein (mg/dL) 12.57 ± 11.97 9.60 ± 9.56 0.297
Nutritional parameters    
 Lymphocyte count (/mm3) 1415.6 ± 1211.5 1664.0 ± 531.0 0.378
 Serum albumin (g/dL) 3.27 ± 0.59 3.76 ± 0.64 0.005*
 Total cholesterol (mg/dL) 167.5 ± 49.7 170.3 ± 43.5 0.833
 Serum cholinesterase (IU/L) 189.8 ± 54.3 237.0 ± 78.1 0.010*
  1. CURB-65 confusion, urea, respiratory rate, blood pressure, age >65 years, PSI pneumonia severity index
  2. *Statistically significant (P < 0.05)