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Table 1 Representative sample for each age group calculated according to 2019 count of Egyptian population

From: Cross-platform comparison of precision and time effectiveness of automated versus semi-automated brain volumetric measurements in healthy Egyptian adults

Age groups

% to total population

% to targeted age group (adults from 15–64)

Males

Females

Males

Females

%

Number in the sample volume (total 385)

%

Number in the sample volume (total 385)

15–19

9.7

7.7

30

7.3

29

4,367,988

4,131,991

20–24

10.3

8.1

32

7.8

31

4,623,621

4,424,043

25–29

9.7

7.6

30

7.3

29

4,334,645

4,175,258

30–34

7.8

6.1

24

5.9

23

3,456,601

3,364,004

35–39

6.1

4.7

19

4.6

18

2,711,932

2,639,282

40–44

5.5

4.2

17

4.2

17

2,422,954

2,379,682

45–49

5.0

3.9

16

3.8

15

2,222,893

2,184,980

50–54

4.4

3.4

14

3.3

13

1,922,803

1,903,745

55–59

3.6

2.7

11

2.7

11

1,567,139

1,557,610

60–64

2.6

2

8

2

8

1,144,789

1,146,574