Table 1.

Clinical data of patients with MM

Characteristics	Patients
Number	23
Gender
Male	14 (61%)
Female	9 (39%)
Age (year)	67 (45–76)
Types of MM	IgG (12), IgM (1), IgA (3), light-chain (6), non-secretory (1)
Stage of pretreatment (ISS)
I	8 (35%)
II	9 (39%)
III	6 (26%）
Bone scanning of pretreatment
Group A	3 (13%)
Group B	20 (87%)
Parameters of pretreatment
Creatinine clearance >30 mL/min	13 (57%)
Creatinine clearance ≤30 mL/min	10 (43%)
Hemoglobin ≥100 g/L	9 (39%)
Hemoglobin <100 g/L	14 (61%)
Calcium >2.75 mmol/L	14 (61%)
Calcium ≤2.75 mmol/L	9 (39%)

ISS, International Staging System; MM, multiple myeloma.