Regional variation in use of exogenous and endogenous glomerular filtration rate (GFR) markers in Sweden

Figures & data

Table I. Total number of plasma/serum creatinine and cystatin C analyses, endogenous creatinine clearances, exogenous iohexol, and 51Cr-EDTA clearances performed in Sweden during 2007–2009.

Type of analysis	2007	2008	2009
Creatinine	5,159,208	5,462,833	5,620,087
Cystatin C	114,144	165,672	196,331
Creatinine clearance (with urine collection)	17,127	15,127	12,077
Iohexol clearance	8,964	9,383	9,976
51Cr-EDTA clearance	6,232	5,509	5,345

Figure 1. Number of creatinine assays per 10,000 inhabitants for 2007–2009. The figures are presented per county.

Table II. Differences between Swedish counties in the number of GFR markers performed during 2009. The figures are presented per 10,000 inhabitants.

	Creatinine	Cystatin C	Creatinine clearance	Iohexol-clearance	51Cr-EDTA-clearance
Blekinge	5470	25.1	0.9	0	0
Dalarna	6920	327	11.3	5.8	0
Gävleborg	7400	165	17	0	0.3
Halland	6750	74.8	0	18.7	0.3
Jämtland	8300	260	2.8	0	5.5
Jönköping	6910	344	0.7	18.2	0.1
Kalmar	8730	59.8	37.8	7.4	2.6
Kronoberg	9220	25.6	1	23.3	0
Norrbotten	3840	71	0	0	16.3
Skåne	3900	293	0	16	0.3
Stockholm	6390	183	26.5	9.2	0.2
Södermanland	6810	39.7	7.2	10.3	0
Uppsala	7880	1970	32.2	3.8	3
Värmland	4440	95.4	0	20.1	1.9
Västerbotten	6460	27.1	61.4	3.7	23.1
Västernorrland	7280	218	0.7	21.9	2.9
Västmanland	6970	44.6	19.9	8	0
Västra Götaland	5420	21.4	0	10	24.7
Örebro	4420	92.3	0.2	15.3	0
Östergötland	6270	129	33.8	9.4	0.1

Figure 2. Number of cystatin C assays per 10,000 inhabitants for 2007–2009. The figures are presented per county.