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Table 1 Characteristics of the studied population

From: Association between environmental particulate matter and arterial stiffness in patients undergoing hemodialysis

Characteristic Studied patients (n = 127)
Age (y) 58.5 ± 9.9
Male sex (%) 40.9
baPWV (cm/s) 1767.2 ± 651.5
DM (%) 23.6
Inradialytic hypotension (%) 20.5
Always hypotension (%) 3.9
HDF (%) 16.5
Hb (g/dL) 10.5 ± 1.3
BUN (mg/dL) 64.7 ± 15.8
Cr (mg/dL) 10.8 ± 2.4
Na (mEq/L) 139.8 ± 3.1
K (mEq/L) 4.8 ± 0.7
Calcium (mg/dL) 9.8 ± 1.0
Phosphorous (mg/dL) 4.6 ± 1.4
Calcium-phosphorous product (mg/dL)2 46.0 ± 16.3
Alb (g/dL) 4.1 ± 0.3
Total cholesterol (mg/dL) 185.3 ± 38.6
Triglyceride (mg/dL) 211.86 ± 157.37
Ultrafiltration amount per dialysis session (L) 2.3 ± 1.1
SBP (mmHg) 139.2 ± 27.0
ABI 1.0 ± 0.1
TBI 0.7 ± 0.1
Body Mass Index (kg/m2) 22.6 ± 3.5
iPTH (pg/mL) 191.3 ± 219.2
Urea reduction rate 0.8 ± 0.1
Kt/V 1.8 ± 0.3
Net protein catabolic rate (g/day/kg body weight) 1.2 ± 0.4
Aluminum (ng/mL) 10 ± 8
Hemodialysis duration (months) 72.5 ± 61.8
hsCRP (mg/L) 4.7 ± 6.4
NO2 (ppb) 22.9 ± 3.8
CO (ppm) 0.6 ± 0.2
SO2 (ppb) 6.9 ± 2.1
PM10 (ug/m3) 57.9 ± 5.7
PM2.5 (ug/m3) 31.8 ± 2.8
O3 (ppb) 25.9 ± 2.9
NO (ppb) 10.1 ± 7.8
  1. DM = diabetes mellitus, HDF = hemodiafiltration, Hb = hemoglobulin, BUN = blood urea nitrogen, Cr = creatinine, K = potassium, SBP = systolic blood pressure, Alb = albumin, ABI = ankle brachial index, TBI = tibial brachial index, iPTH = intact parathyroid hormone, Kt/V = a number used to quantify hemodialysis treatment adequacy, Al = aluminum, hsCRP = high sensitivity C reactive protein, NO 2  = environmental nitrogen dioxide, CO = environmental carbon dioxide, SO 2  = environmental sulfur dioxide, PM 10  = particulate matter with aerodynamic diameter <10 mm, PM 2.5  = particulate matter with aerodynamic diameter <2.5 mm, O 3  = environmental ozone, NO = environmental nitrogen oxide