. 2011 Jul;84(1003):639–648. doi: 10.1259/bjr/24828606

Table 4. Data on the distributions for ratio of eye and thyroid dose, and for ratios of operator doses to dose–area product (DAP) (μGy Gy⁻¹ cm⁻²) from studies reviewed.

	No. of data sets	Min.	First quartile	Median	Mean	Third quartile	Max.
Dose ratio: eye/thyroid	17	0.24	0.38	0.54	0.63	0.86	1.25
Tissue dose/DAP μGy Gy⁻¹ cm⁻² All interventional procedures
Eye	9	0.29	0.32	0.43	0.79	1.0	1.9
Thyroid	20	0.28	0.71	0.99	1.38	1.7	4.3
Hand (percutaneous procedures)	5	11	16	32	27	34	60
Hand (non-percutaneous procedures femoral and internal jugular vein access)	24	0.43	1.3	2.4	2.8	4.3	6.7
Leg (no screen)	8	2.6	5.0	6.2	6.7	9.0	10.6
Leg (protective screen)	14	0.21	0.28	0.45	0.85	1.6	2.3
Cardiology procedures
Thyroid	11	0.28	0.6	0.8	0.9	1.2	1.8
Hand (femoral and radial access)	10	0.43	1.1	1.4	2.5	2.9	9.0
Leg (protective screen)	10	0.21	0.26	0.34	0.65	1.2	1.9

Table 4. Data on the distributions for ratio of eye and thyroid dose, and for ratios of operator doses to dose–area product (DAP) (μGy Gy−1 cm−2) from studies reviewed.