Table 1.

Description of the patients involved in the study.

Patients	Disease	k FLC (mg/l)	λ FLC (mg/l)	Ratio	S-IF	U-IF	IgA mg/dl	IgG mg/dl	IgM mg/dl	Creatinine (mg/dl)
c 1	Healthy	18.4	13.5	1.36	neg.	neg.	159	1560	137	0.65
c 2	Healthy	20.1	8.9	2.26	neg.	neg.	96	1130	129	0.51
c 3	Healthy	7.4	17.5	0.42	neg.	neg.	298	1120	122	0.49
MGUS 1	MGUS	1.69	608	0.00	IgG/λ	λ	20.1	2010	28.7	0.6
MGUS 2	MGUS	9.36	284	0.03	IgG/λ	neg.	28.7	2220	15.2	0.9
MGUS 3	MGUS	12.9	105	0.12	λ	neg.	809	845	66.4	0.64
MM 1	Multiple myeloma	1210	22	55.00	IgG/k	k	85.3	729	22.4	0.85
MM 2	Multiple myeloma	1550	4.85	319.59	IgG/k	k	26	978	23.4	2
MM 3	Multiple myeloma	1360	6.15	221.14	IgG/k	k	46.1	519	17.7	0.8
MM 4	Multiple myeloma	26.6	864	0.03	λ	λ	22.6	581	23.7	1.5
MM 5	Multiple myeloma	73.9	1130	0.07	λ	λ	174	1150	142	2.6
MM 6	Multiple myeloma	2.45	4450	0.00	λ	λ	204	727	22.8	0.9

S-IF, serum immunofixation; U-IF, urine immunofixation; neg., negative.