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Table 2 Characteristics of n = 122 patients (patient age and morphological tumor parameters in MRI)

From: Does age matter? - A MRI study on peritumoral edema in newly diagnosed primary glioblastoma

Age group

Age ≥ 65 ys

Age >65 ys

Age ≥ 55 ys

Age 55-69 ys

Age ≥ 70 ys

Nr. of patients

n = 61

n = 61

n = 42

n = 41

N = 39

Age [years]

     

Mean

51

72

46

64

75

Standard dev.

8.91

4.64

7.5

4.3

3.7

Maximum edema [mm]

     

Mean

23.6

21

23.5

22.7

20.6

Standard dev.

11.96

12.96

11

12.4

14.2

Degree of edema

     

Mean

1.75

1.43

1.67

1.78

1.31

Median

2

1

1.5

2

1

Standard dev.

1.11

1.12

1.07

1.13

1.13

Tumor area [mm 2 ]

     

Mean

1344

1285

1411

1271

1258

Standard dev.

814

903

885

858

837

Degree of necrosis [n (in %)]

     

none

1 (1.6%)

3 (4.9%)

1 (2.4%)

0

3 (7.7%)

<25%

4 (6.6%)

8 (13.1%)

2 (4.8%)

4 (9.8%)

6 (15.4%)

25-50%

13 (21.3%)

13 (21.3%)

11 (26,1%)

8 (19.5%)

7 (17.9%)

>50%

43 (70.5%)

37 (60.7%)

28 (66.7%)

29 (70.7%)

23 (59.0%)

Tumor localisation [n (in %)]

     

Depth:

     

Superficial

10 (16.4%)

9 (14.8%)

5 (11.9%)

7 (17.1%)

7 (17.9%)

Deep

51 (83.6%)

52 (85.2%)

37 (88.1%)

34 (82.9%)

32 (82.1%)

Region of brain:

     

Frontal

22 (36.1%)

13 (21.3%)

16 (38.1%)

10 (24.4%)

9 (23.1%)

Temporal

15 (24.6%)

20 (32.8%)

11 (26.2%)

7 (17.1%)

9 (23.1%)

Central

14 (23.0%)

13 (21.3%)

7 (16.7%)

16 (39.0%)

12 (30.8%)

Parietooccipital

6 (9.8%)

13 (21.3%)

4 (9.5%)

7 (17.1%)

8 (20.5%)

Basal ganglia

3 (4.9%)

2 (3.3%)

3 (7.1%)

1 (2.4%)

1 (2.5%)

Other

1 (1.6%)

0

1 (2.4%)

0

0