Table 3.

Distribution of malignant tumors for different body regions

Region	CE protocol		NCE protocol
	median	IQR	median	IQR	p
Brain	2	1–2	0	0–1	<0.001
Head and neck	2	1–3.5	2	1–4	0.356
LN	1	1–4	1	1–3	0.196
Thorax	1	1–4	1	1–3	0.09
Abdomen	2	1–6	1	0–2	<0.001
Bone	5	1–30	4.5	1–30	0.414
Total	2	0–14	1	0–5	<0.001

Friedman's test.