Research Article

Neutrophil to Lymphocyte Ratio Predicts Adverse Cardiovascular Outcome in Peritoneal Dialysis Patients Younger than 60 Years Old

Table 1

Baseline characteristics of the study population.

Total ()Group1 ()Group2 ()Group3 () value

No. of C1/C2/C3/C4313/794/36/359123/249/9/120125/247/7/12365/298/20/116<0.001
No. of men/women852/650261/240270/232321/178<0.001
NLR3.3 (2.5, 4.5)2.2 (1.8, 2.5)3.3 (3.0, 3.6)5.4 (4.5, 7.0)<0.001
Demographics
 Age (y)51.0 (41.0, 62.0)49.0 (39.0, 61.0)50.5 (41.0, 61.0)53.0 (43.0, 63.0)0.008
 BMI (kg/m2)22.1 (20.1,24.2)22.1 (20.0, 24.2)22.1 (20.3, 24.4)22.1 (20.1, 24.2)0.400
Comorbid
 Systolic BP (mmHg)146.0 (132.0, 164.0)146.0 130.0, 160.0)146.0 (134.0, 161.0)149.0 (134.0, 170.0)<0.001
 Diastolic BP (mmHg)86.0 (78.0, 95.0)86.0 (78.0, 95.0)86.0 (79.0, 95.0)86.0 (78.0, 96.0)0.537
 Hypertension985 (65.6%)310 (61.9%)319 (63.5%)356 (71.3%)0.004
 Diabetes mellitus343 (22.8%)106 (21.2%)115 (22.9%)122 (24.4%)0.463
 Cardiovascular disease232 (15.4%)68 (13.6%)77 (15.3%)87 (17.4%)0.239
Treatments
 CCB1104 (73.5%)369 (73.7%)367 (73.1%)368 (73.7%)0.970
 Loop diuretic100 (6.7%)32 (6.4%)30 (6.0%)38 (7.6%)0.557
 Insulin231 (15.4%)75 (15.0%)71 (14.1%)85 (17.0%)0.427
Laboratory variables
 WBC (109/L)6.1 (4.9, 7.6)5.3 (4.3, 6.6)6.1 (5.0, 7.3)6.9 (5.7, 9.0)<0.001
 Neutrophil (109/L)4.1 (3.1, 5.2)3.0 (2.4, 3.8)4.1 (3.5, 4.8)5.3 (4.2, 6.9)<0.001
 Lymphocyte (109/L)1.2 (0.9, 1.6)1.5 (1.2, 1.9)1.2 (1.0, 1.5)0.9 (0.7, 1.2)<0.001
 Hemoglobin (g/L)87.0 (74.0, 100.0)89.0 (76.0, 103.0)87.0 (75.0, 101.0)83.0 (70.0, 95.0)<0.001
 Albumin (g/L)34.6 (31.1, 37.9)34.9 (31.4, 38.4)34.7 (31.3, 37.4)34.2 (30.7, 37.6)0.046
 Creatinine (μmol/L)708.1 (543.8, 931.1)699.0 (543.5, 898.5)713.0 (542.0, 932.7)728.0 (546.0, 948.8)0.606
 Urea nitrogen (mmol/L)20.5 (15.5, 26.8)19.5 (15.2, 25.4)20.2 (15.3, 26.4)21.8 (16.3, 29.4)<0.001
 Uric acid (mmol/L)428.0 (356.0, 508.3)428.0 (356.0, 511.5)428.0 (355.0, 504.0)428.0 (360.0, 504.0)0.891
 FBG (mmol/L)4.7 (4.1, 5.5)4.6 (4.1, 5.4)4.7 (4.1, 5.5)4.8 (4.1, 5.6)0.033
 Cholesterol (mmol/L)4.2 (3.5, 5.04.3 (3.7, 5.0)4.2 (3.5, 4.9)4.2 (3.4, 4.9)0.009
 Triglycerides (mmol/L)1.3 (1.0, 1.8)1.3 (1.0, 1.8)1.3 (1.0, 1.8)1.3 (0.9, 1.7)0.029
 Sodium (mmol/L)140.1 (138.0, 142.3)140.6 (138.3, 142.5)140.0 (138.0, 142.9)140.0 (137.7, 142.0)0.017
 Chlorine (mmol/L)103.0 (99.4, 107.0)103.2 (99.9, 107.0)103.0 (99.3, 106.8)102.8 (99.0, 107.0)0.103
 Calcium (mmol/L)2.0 (1.9, 2.2)2.1 (1.9, 2.2)2.0 (1.9, 2.2)2.0 (1.8, 2.1)<0.001
 Potassium (mmol/L)4.1 (3.6, 4.7)4.2 (3.7, 4.8)4.1 (3.6, 4.7)4.1 (3.6, 4.7)0.226
 Phosphorus (mmol/L)1.7 (1.4, 2.0)1.7 (1.4, 2.0)1.7 (1.3, 2.0)1.7 (1.4, 2.1)0.005
 Total 2.2 (1.8, 2.6)2.2 (1.8, 2.7)2.2 (1.7, 2.6)2.2 (1.8, 2.6)0.099
 RRF(mL/min)3.9 (2.1, 7.2)3.9 (2.0, 7.6)3.9 (2.2, 7.1)3.9 (2.0, 6.8)0.856

Note: All continuous variables are skewed distribution, the values for continuous variables are given as median (P25, P75). Abbreviations: C1: center 1; C2: center 2; C3: center 3; C4: center 4; NLR: neutrophil lymphocyte ratio; BMI: body mass index; BP: blood pressure; CCB: calcium channel blocker; WBC: white blood cell; FBG: fasting blood glucose; : , dialyzer clearance of urea; , dialysis time; , volume of distribution of urea; RRF: renal residual function.