Age (years)

Dose quantity

Our Study

IAEA

Switzerland

Cameroon

Belgium

Morocco

<1.5

CTDI_vol (mGy)

22.5

26

25

24

22

26.9

DLP (mGy∙cm)

452.5

440

350

381.3

340

461.6

1.5 - 5.5

CTDI_vol (mGy)

27.7

36

30

42.5

30

28.8

DLP (mGy∙cm)

690.6

540

420

875.6

520

540

5.5 - 10.5

CTDI_vol (mGy)

28.0

43

35

45.9

32

34

DLP (mGy∙cm)

722.4

690

540

939.6

595

627.2

>10.5

CTDI_vol (mGy)

33.6

53

40

57.1

41

38.2

DLP (mGy∙cm)

736.8

840

670

1222.3

725

705.9