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Table 2 Background clinical data and characteristics of each group

From: Modified A-DROP score and mortality in hemodialysis patients with pneumonia

Severity of pneumonia Modified   Modified   Modified   
  A-DROP   A-DROP   A-DROP   
  0, 1   2   3, 4   
  n = 27   n = 22   n = 15   p value
Age (years) 65 37–81 76 59–88 81 74–88 <0.001***
Male (n, %) 16 59.3 19 86.4 12 80.0 0.09
BMI (kg/m2) 20.7 16.1–40.9 19.4 14.3–26.3 20.4 14.8–23.9 0.66
Duration of HD (months) 47 3–231 37 2–290 48 1–154 0.97
Cause of HD
 DMN (n, %) 8 29.7 12 54.6 7 46.7 0.20
 Chronic GN (n, %) 10 37.0 6 27.3 5 33.3 0.75
 Nephrosclerosis (n, %) 5 18.5 2 9.1 3 20.0 0.62
 RPGN (n, %) 3 11.1 1 4.5 0 0 0.54
 Other (n, %) 1 3.7 1 4.5 0 0 1.00
Vascular access
 AVF (n, %) 21 77.8 13 59.1 8 53.3 0.21
 AVG (n, %) 3 11.1 8 36.4 4 26.7 0.10
 Catheter (n, %) 3 11.1 1 4.5 3 20.0 0.40
Comorbidity
 CVD (n, %) 13 48.1 10 45.5 11 73.3 0.23
 Malignancy (n, %) 4 14.8 4 18.2 4 26.7 0.65
 CLD (n, %) 6 22.2 5 22.7 2 13.3 0.85
Vital signs
 Systolic BP (mmHg) 129 88–204 150 97–170 120 68–203 0.18
 Diastolic BP (mmHg) 74 53–103 72 47–141 64 40–99 0.24
 Heart rate (/min) 98 68–142 96 68–136 94 58–130 0.49
 Altered mentality (n, %) 0 0 7 31.8 14 93.3 <0.001***
 Fever (degree) 37.1 35.5–39.6 37.7 35.0–39.3 37.8 36.1–39.3 0.38
 Hypoxia (n, %) 11 40.7 19 86.4 15 100 <0.001***
Blood examination
 Alb (g/dL) 3.1 2.1–4.1 3.3 2.1–4.3 3.0 2.0–3.9 0.39
 BUN (mg/dL) 35.2 13.2–80.7 39.4 12.9–84.5 34.2 13.6–74.3 0.48
 Cr (mg/dL) 5.99 1.48–13.32 5.23 2.10–13.05 5.25 2.65–11.20 0.26
 Na (mEq/L) 138 129–145 140 132–147 140 131–147 0.11
 K (mEq/L) 4.2 3.2-5.9 4.5 3.5–8.2 4.1 2.9–8.4 0.25
 CRP (mg/dL) 7.91 1.21–30.80 9.16 0.85–43.12 9.54 1.37–13.99 0.98
 WBC (/μL) 9600 4220–23100 9910 3130–33520 9580 3600–28910 0.99
 Hb (g/dL) 10.6 4.1–16.5 10.9 7.6–14.4 10.5 7.1–13.5 0.98
 Plt (x 104/μL) 16.2 2.7–50.0 17.6 2.1–31.3 14.4 6.8–72.0 0.88
Bacterial cultures
 Sputum (n, %) 20 74.1 20 90.9 14 93.3 0.22
 Blood (n, %) 17 63.0 20 90.9 10 66.7 0.07
Radiological findings
 Multi-lobar lesion (n, %) 15 55.6 15 68.2 12 80.0 0.26
 Pleural effusion (n, %) 14 51.9 15 68.2 14 93.3 0.012*
Therapy and prognosis
 Success of initial therapy
  (n, %) 21 77.8 17 77.3 8 53.3 0.22
 Duration of antibiotics
  (days) 8 1–43 12 3–36 13 3–36 0.023*
  30-day mortality (n, %) 1 3.7 2 9.1 6 40.0 0.004**
  Hospital mortality (n, %) 1 3.7 3 13.6 7 46.7 0.003**
  1. Data for continuous variables are expressed as median and range, and categorical variables are expressed as number and percentages. Categorical variables were compared using Fisher’s exact probability test, and continuous variables among three groups were compared using the Kruskal–Wallis test. Significant difference are indicated with asterisks (***p < 0.001, **p < 0.01, *p < 0.05)
  2. Alb albumin, AVF arteriovenous fistula, AVG arteriovenous graft, BMI body mass index, BP blood pressure, BUN blood urea nitrogen, CLD chronic lung diseases, Cr creatinine, CRP C-reactive protein, CVD cardiovascular diseases, DMN diabetes mellitus nephropathy, K potassium, Na sodium, GN glomerulonephritis, HD hemodialysis, Hb hemoglobin, Plt platelet, RPGN rapid progressive glomerulonephritis, WBC white blood cell count