Hospital

Age ± SD(y)

Weight ± SD

kVp ± SD

mAs ± SD

CTDIvol ± SD

DLP ± SD

All Hospitals

46.49 ± 14.16

73.34 ± 7.58

119.81 ± 4.15

154.96 ± 41.83

10.89 ± 4.77

438.73 ± 179.93

H1

52.56 ± 11.75

76.31 ± 6.84

120.00 ± 0.00

212.81 ± 21.98

17.04 ± 3.07

456.82 ± 237.72

H2

41.00 ± 11.56

71.44 ± 7.71

120.00 ± 0.00

120.00 ± 0.00

7.38 ± 2.85

407.76 ± 181.29

H3

52.15 ± 19.38

73.31 ± 7.25

119.23 ± 8.62

150.77 ± 11.15

10.96 ± 2.37

518.29 ± 140.81