Table 7 Multivariate analysis of 5 year survival of the patients diagnosed with plasmacytoma who progressed to myeloma & those with initial diagnosis of Myeloma

Age

>40

54.3%

24.9 – 76.5

31.2%

24.8 – 37.7

0.06

40-49

34%

19.6 – 48.9

23%

20.5 – 25.6

0.12

50-59

24.6%

16.5 – 33.5

23.5%

21.9 – 25.1

0.27

≥60

15.1%

11.4 – 19.3

16.6%

14.8 – 18.4

0.031

Sex

Male

22.2%

17.3 – 27.4

18%

17.2 – 18.9

0.009

Female

15.9%

11.2 – 21.2

16.9%

16 – 17.8

0.102

Race

White

18.4%

14.6 – 22.4

17.5%

16.8 – 18.3

0.018

Black

23%

14.1 – 33.3

17.6%

16.2 – 19.2

0.085

Others

27.1%

9.7 – 48.2

15.4%

14 – 19

0.104

Exposure To Radiotherapy

Without Radiation

13.6%

8.5 – 19.9

18%

17.3 – 18.8

0.062

With Radiation

21.8%

17.5 – 26.5

15.9%

14.7 – 17.1

<0.05

Radiation Sequence

Adjuvant

22.4%

14.1 – 31.9

18.8%

12.4 – 26.3

0.096

Neoadjuvant

100%

N/a

0%

N/a

N/a

Neoadjuvant and adjuvant

0%

N/a

0%

N/a

N/a

Surgical Intervention

No

18.5%

14.5 – 22.8

17.5%

16.8 – 18.1

0.080

Yes

22.1%

15.4 – 29.7

19.6%

12.7 – 27.7

0.119