Figure 5.

Cox proportional model of patients with chronic kidney disease according to health insurance. The graph shows patients who were able to obtain coverage through a health insurance program (blue line) and patients without health insurance (red line). The mortality at the end of the study was 38.2% for patients with social security and 56.7% for patients without social security (P < 0.001). The model was adjusted for each renal replacement therapy (chronic hemodialysis program, intermittent hemodialysis, continuous ambulatory peritoneal dialysis, intermittent peritoneal dialysis, and renal transplant), age (for each year), sex (male), diabetes status (yes), heart disease (yes), cancer (yes), education level (>6 years of schooling), income (>$300 per month), residence in rural area (yes), access to health insurance programs, and laboratories dichotomized by clinically significant cutpoints at the moment of hospital admission (serum potassium >7 mmol/l, serum bicarbonate <7 mmol/l, hemoglobin <6 g/dl, and urea >300 mg/dl).