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Table 1 Distribution of the potential prognostic factors in the two treatment groups

From: A matched-pair study comparing whole-brain irradiation alone to radiosurgery or fractionated stereotactic radiotherapy alone in patients irradiated for up to three brain metastases

 

WBI alone (n = 152)

RS/FSRT alone (n = 152)

 

N (%)

N (%)

Age

  ≤ 60 years

78 (51)

78 (51)

  > 60 years

74 (49)

74 (49)

Gender

 Female

82 (54)

82 (54)

 Male

70 (46)

70 (46)

ECOG performance score

 0–1

104 (68)

104 (68)

 2

48 (32)

48 (32)

Nature of tumor

 Breast cancer

31 (20)

31 (20)

 Non-small-cell lung cancer

78 (51)

78 (51)

 Small-cell lung cancer

4 (3)

4 (3)

 Kidney cancer

8 (5)

8 (5)

 Melanoma

13 (9)

13 (9)

 Cancer of unknown primary

4 (3)

4 (3)

 Gastrointestinal cancers

12 (8)

12 (8)

 Gynecological cancers

2 (1)

2 (1)

Brain metastases number

 1

86 (57)

86 (57)

 2–3

66 (43)

66 (43)

Extra-cerebral spread

 No

75 (49)

75 (49)

 Yes

77 (51)

77 (51)

Period from cancer detection to irradiation

  ≤ 15 months

76 (50)

76 (50)

  > 15 months

76 (50)

76 (50)

RPA-class

 1

59 (39)

59 (39)

 2

93 (61)

93 (61)