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Table 2 Characteristics of X-rayed patients, alive and dead

From: Predicting risk of mortality in dialysis patients: a retrospective cohort study evaluating the prognostic value of a simple chest X-ray

Characteristics Alive Dead p
n 672/824 152/824 -
Age at chest x-ray 58.0 [46.1, 68.7] 67.5 [58.7, 78.4] <0.01
Sex (M) 55% 49% 0.05
Race    
   Caucasian 46% 51% 0.35
   Aboriginal 34% 38% 0.34
   Other 20% 11% 0.02
BMI 32.6 [28.5, 38.8] 31.4 [28.2, 39.4] 0.32
Diabetes 55% 56% 0.90
CHF 14% 22% 0.01
Hypertension 66% 71% 0.24
IHD 14% 20% 0.05
Hemoglobin (g/L) 93 [80, 106] 95 [85, 105] 0.26
Creatinine (mcm.L) 709 [555, 892] 566 [477, 723] <0.01
Urea (mmol/L) 31 [25, 39] 31 [23, 41] 0.91
CO2 (mmol/L) 20 [16, 23] 20 [16, 23] 0.28
Calcium (mmol/L) 2.1 [1.8, 2.3] 2.1 [1.8, 2.3] 0.32
PO4 (mmol/L) 2.1 [1.7, 2.7] 2.1 [1.6, 2.5] 0.06
Albumin (g/L) 29 [24, 34] 29 [24, 34] 0.94
HD days at chest x-ray 401 [4.0, 1589] 608 [76, 1327] 0.61
Follow-up days 1257 [626, 2411] 912 [402, 1664] <0.01
Older Vintage (start year < 2005) 30% 28% 0.77