Table 5. Biochemical correlates to primary reasons, ranked according to eGFR.

	eGFR (ml/min/1.73 m2)	BMI (kg/m2)a	Albumin (g/l)	Bicarbonate (mM)	C-reactive protein (mg/l)b
Cachexia	9.8 ±5.7	21,3 ±3.3	34,8 ±3.3	21,9 ±6.4	3 (1–3)
Pericarditis	8.9 ±3.8	28,1 ±1.8	31,0 ±5.7	24,0 ±8.5	158 (-)
Anorexia	8.4 ±1.8	27,7 ±6.2	36,8 ±7.1	22,2 ±3.3	7 (3–17)
Pulmonary stasis	8.2 ±4.8	27,6 ±7.6	32,0 ±6.5	20,5 ±5.7	38 (9–91)
Falling eGFR	8.1 ±3.5	23,2 ±3.7	34,8 ±7.1	19,4 ±3.4	22 (4–72)
Itching	7.9 ±3.4	24,8 ±4.5	34,1 ±9.8	21,6 ±2.6	24 (5–37)
Fatigue	7.9 ±3.5	26,8 ±5.7	35,0 ±6.2	21,6 ±4.9	5 (3–25)
Cardiac symptoms	7.5 ±4.8	25,4 ±4.4	35,7 ±4.9	19,0 ±2.6	20 (1–139)
High potassium	7.3 ±3.3	24,9 ±7.9	32,4 ±7.5	18,6 ±4.9	25 (4–75)
High urea	7.2 ±3.5	24,6 ±4.0	33,5 ±5.4	20,8 ±5.7	14 (3–60)
Nausea	7.0 ±3.3	24,2 ±5.0	32,9 ±8.0	20,8 ±4.6	3 (3–33)
High creatinine	6.5 ±3.3	25,0 ±4.4	35,1 ±6.4	20,3 ±5.8	12 (10–146)
Dyspnea	6.3 ±2.3	29,0 ±6.7	31,2 ±7.1	19,9 ±6.6	65 (10–146)
Hypertension	6.3 ±2.6	31,0 ±9.4	36,3 ±1.5	19,0 ±2.0	9 (2–24)
Edema	6.1 ±2.0	25,9 ±5.2	30,1 ±6.1	20,3 ±5.5	19 (3–86)
Low eGFR	6.1 ±2.1	25,8 ±4.7	36,5 ±6.2	22,4 ±4.1	5 (3–20)
Acidosis	4.6 ±2.3	27,6 ±6.1	31,1 ±7.9	16,0 ±8.7	29 (3–69)
Motivational groups
Primary Clinical	7.5 ±3.6**	26.3 ±5.9	33.4 ±6.7	21.1 ±5.1	10 (3–54)
Primary Biochemical	6.6 ±3.0	25.2 ±5.1	34.7 ±6.6	20.6 ±5.4	11 (3–44)
Life-threatening	7.3 ±4.0	26.2 ±5.9	31.9 ±6.8***	19.5 ±6.1***	37 (5–91)***
Not life-threatening	7.4 ±3.3	25.7 ±5.4	35.1 ±6.6	22.0 ±4.7	6 (3–30)
No clinical	7.1 ±3.1	26.0 ±5.7	34.9 ±7.2	20.6 ±5.4	9 (3–53)
Some clinical	7.2 ±3.5	25.8 ±5.7	33.6 ±6.6	21.0 ±5.1	11 (3–49)
No biochemical	8.2 ±3.6**	25.0 ±5.6	34.2 ±6.7	20.5 ±5.2	12 (3–86)
Some biochemical	7.0 ±3.3	26.0 ±5.7	33.7 ±6.7	21.0 ±5.2	9 (3–45)
All	7.2 ±3.4	25.8 ±5.7	33.8 ±6.7	20.9 ±5.2	10 (3–49)

^aexcluding patients with type 2 DM;

^b: Median (IQ range);

**:p<0.01;

***:p<0.001