Table 5.

Sociodemographic, clinical, and paraclinical data by type of kidney failure in 50 gold miner patients.

	Acute kidney	Chronic kidney
	failure, n = 5	failure, n = 45
Age
Average in years, a ± SD	34.4 ± 16.9	28.9 ± 6.1
Use of chemicals
Mercury alone, n (%)	3	32 (71.1)
Cyanide alone, n (%)	1	6 (13.3)
Mercury and cyanide, n (%)	1	7 (15.6)
Exposure time in years	Median = 3.5	a ±SD = 4.4 ± 2.1
Consultation time period
Median in days	10.5	—
Average in days, a  ±  SD	—	26.9 ± 14.9
Biological data
Creatininemia in μmol/L	1498.6 ± 529.7	2814.1 ± 854.7
Plasma urea in mmol/L	11.2 ± 6.8	32.3 ± 19.4
Natremia in mmol/L	136.5 ± 9.1	126.5 ± 9.3
Kalemia in mmol/L	4.0 ± 1.4	4.8 ± 1.7
Bicarbonatemia in mmol/L∗	19.4 ± 5.4	16.2 ± 9.2
Calcemia in mmol/L	1.8 ± 0.4	1.6 ± 0.4
Hemoglobinemia in g/dL	12.6 ± 2.3	8.6 ± 4.3

a ± SD: average ± standard deviation; n: the number of patients for whom the results of the examination were available. ^∗n = 31.