Table 4: Median and 1- and 5-year survival probabilities for 1,004 patients diagnosed with dedifferentiated liposarcoma by age, sex, race, stage, primary site, treatment group, Charlson-Deyo score, and surgical margins.

Variable

Probability of 1-Year Survival (%)

Probability of 5-Year Survival (%)

Median Survival (months)

Overall Survival

86.8

55.5

73.3+3.9

Age Group (years)

 

 

 

0-20

100

*

*

21-40

94.4

77.3

*

41-60

89.0

57.9

*

61-80

83.6

43.9

*

>80

83.7

23.1

*

Sex

 

 

 

Male

85.7

55.3

73.3+11.6

Female

88.8

56.1

75.6.5+11.2

Race

 

 

 

White

87.1

55.9

73.3+5.2

African American

84.6

55.7

63.5a

Other

84.2

50.6

*

Metastasis Status

 

 

 

Metastasis

50.8

17.7

16.3+6.6

No Metastasis

88.5

57.4

73.4+3.6

Primary Site

 

 

 

Head or Neck

*

*

*

(Retro)Peritoneum/Abdomen

84.2

46.8

*

Thorax/Trunk

87.2

58.9

*

Extremities

93.8

69.0

*

Pelvis

87.8

72.4

*

Tumor Grade

 

 

 

High

85.9

54.0

72.2+5.0

Low

95.2

71.7

*

Therapy Group

 

 

 

No Chemotherapy or Radiation

83.9

46.5

63.5a

Neoadjuvant Chemotherapy or Radiation

88.4

56.9

75.6+13.1

Adjuvant Chemotherapy or Radiation

88.5

 48.1

73.3+3.8

Charlson-Deyo Score

 

 

 

0

88.1

57.1

73.4+3.5

1

80.8

48.2

51.7+12.0

2

83.4

52.9

*

3+

92.9

63.7

*

Surgical Margins Status

 

 

 

No Residual Tumor

90.2

61.0

73.4a

Microscopic Residual Tumor

87.5

54.9

73.3+14.3

Macroscopic Residual Tumor

69.8

44.0

31.3+7.5

Residual Tumor, NOS

79.6

44.9

55.2+8.6

Indeterminate

84.6

42.5

50.0+3.9

*: Median or percent survival data not available.

a: Error data not available due to sample size limitations.