Table 1 Characteristics of patients with and without an available chest X-Ray
Characteristics | X-ray available | X-ray not available | p |
|---|---|---|---|
Proportion alive at end of follow-up | 672/824 | 444/800 | <0.01 |
Age at dialysis start | 57.3 [45.0, 68.1] | 63.8 [53.0, 74.8] | <0.01 |
Age at chest x-ray | 59.7 [47.3, 70.7] | - | - |
Sex (M) | 54% | 56% | 0.64 |
Race | Â | Â | Â |
   Caucasian | 47% | 59% | <0.01 |
   Aboriginal | 35% | 28% | <0.01 |
   Other | 18% | 13% | 0.01 |
BMI | 32.5 [28.5, 38.8] | 33.0 [28.2, 38.3] | 0.99 |
Diabetes | 25% | 20% | 0.01 |
CHF | 15% | 18% | 0.14 |
Hypertension | 67% | 70% | 0.17 |
IHD | 15% | 20% | <0.01 |
Hemoglobin (g/L) | 93 [81, 106] | 97 [84, 110] | <0.01 |
Creatinine (mcm/L) | 678 [529, 876] | 632 [495, 815] | <0.01 |
Urea (mmol/L) | 31 [25, 40] | 32 [24, 39] | 0.93 |
CO2 (mmol/L) | 20 [16, 23] | 20 [17, 24] | 0.03 |
Calcium (mmol/L) | 2.1[1.8, 2.3] | 2.1 [1.8, 2.3] | 0.97 |
PO4 (mmol/L) | 2.1[1.7, 2.6] | 2.0 [1.6, 2.5] | 0.01 |
Albumin (g/L) | 29 [24, 34] | 30 [25, 35] | 0.01 |
HD days at chest x-ray | 463 [9, 1520] | N/A | - |
Follow-up days | 1173 [585, 2266] | 1112 [453, 1926] | <0.01 |
Older Vintage (start year < 2005) | 29% | 30% | 0.91 |
Urban dialysis | 83% | 68% | <0.01 |