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Table 2 Clinical characteristics of MM with EMP

From: Analysis of clinical features, treatment response, and prognosis among 61 elderly newly diagnosed multiple myeloma patients: a single-center report

Characteristics

Overall (n = 19)

A (≥65)

B (≥75)

Age

72 (65–81)

69 (65–73)

77 (75–81)

Gender, n (%)

 Male

10 (52.6 %)

7 (36.8 %)

3 (15.8 %)

 Female

9 (47.4 %)

5 (26.3 %)

4 (21.1 %)

Heavy chain, n (%)

 IgG

9 (47.4 %)

6 (31.6 %)

3 (15.8 %)

 IgA

6 (31.6 %)

3 (15.8 %)

3 (15.8 %)

Light chain, n (%)

 κ light chain

1 (5.3 %)

1 (5.3 %)

0

 λ light chain

2 (10.6 %)

1 (5.3 %)

1 (5.3 %)

β2MG ≥ 5.5 mg/l, n (%)

14 (73.7 %)

10 (52.6 %)

4 (21.1 %)

Sites of EMP, n (%)

 1. Spinal canal

10 (52.6 %)

8 (42.1 %)

2 (10.5 %)

 2. Pleura

5 (26.3 %)

0

5 (26.3 %)

 3. Soft tissue

2 (10.5 %)

2 (10.5 %)

0

More than two sites, n (%)

4 (21.1 %)

4 (21.1 %)

0

Plasma cell percentage, n (%)

37.2 (2–91)

37 (2–91)

37.5 (18.5–46.5)

Abnormal genetics testing, n (%)

 G-banded karyotype testing

2 (33.3 %)

1 (16.7 %)

1 (16.7 %)

 FISH

4 (66.7 %)

0

4 (66.7 %)