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Table 1 Demographic and baseline characteristics of the overall study population

From: Clinical outcomes associated with long-term exposure to airborne particulate pollution in kidney transplant recipients

Variables Category Median Total
N = 1146
% Mean ± SD
Concentration Low[26.26 ~ 53.00) High[53.00 ~ 120.19)
N (%) 663 (57.85) 483 (42.15)
Recipient characteristics
 Age at transplantation, years   45.12 ± 12.92 44.92 ± 11.86    45.0 ± 12.5
 Sex male 405 (35.34) 284 (24.78) 689 60.12  
female 258 (22.51) 199 (17.36) 457 39.88  
 Smoking yes 66 (5.76) 67 (5.85) 133 11.61  
no 597 (52.09) 416 (36.30) 1013 88.39  
 Body mass index, kg/m2   22.74 ± 3.35 22.56 ± 3.25    26.2 ± 70.5
 Hypertension yes 588 (51.31) 466 (40.66) 1054 91.97  
no 75 (6.54) 17 (1.48) 92 8.03  
 Diabetes mellitus yes 229 (19.98) 162 (14.14) 391 34.12  
no 434 (37.87) 321 (28.01) 755 65.88  
 Preemptive yes 208 (18.15) 134 (11.69) 342 29.84  
no 455 (39.70) 349 (30.45) 804 70.16  
 RRT duration before KT, months   36.93 ± 45.44 39.78 ± 48.28    38.13 ± 46.65
 Phosphorus, mg/dl   5.11 ± 6.16 4.91 ± 1.62    5.02 ± 4.82
 Albumin, g/dl   5.27 ± 38.66 3.90 ± 0.61    4.69 ± 29.40
 eGFR at 6 months, ml/min/1.73m2   55.30 ± 18.45 57.06 ± 16.02    56.0 ± 17.5
 Diseases causing ESRD DM 119 (10.38) 70 (6.11) 189 16.49  
HTN 29 (2.53) 19 (1.66) 48 4.19  
GN 250 (21.82) 172 (15.01) 422 36.82  
others 81 (7.07) 73 (6.37) 154 12.43  
unknown 184 (16.06) 149 (13.00) 333 29.06  
 HLA mismatch   2.98 ± 1.76 3.01 ± 1.60    2.99 ± 1.69
Donor characteristics
 Donor age, years   43.1 ± 13.14 41.80 ± 12.70    42.6 ± 13.0
 Donor sex male 368 (32.11) 283 (24.69) 651 56.81  
female 295 (25.74) 200 (17.45) 495 43.19  
 Donor type Living 452 (39.44) 325 (28.36) 777 67.8  
Deceased 211 (18.41) 158 (13.79) 369 32.2  
 ABO compatible 621 (53.40) 466 (40.66) 1078 94.07  
incompatible 51 (4.45) 17 (1.48) 68 5.93  
  1. Data are presented as means with standard deviation unless otherwise indicated. Covariates are given as measured at the time of kidney transplantation. RRT renal replacement therapy, KT kidney transplantation, eGFR estimated glomerular filtration rate, ESRD end stage renal disease, DM diabetes mellitus, HTN hypertension, GN glomerulonephritis, HLA human leukocyte antigen