Additional Table 1.

Patient characteristics of control and H₂ groups

No.	Sex	Age (yr)	Type of cancer		Stage
			Origin	Metastasis and/or dissemination
Control
1	F	69	Ovary	Multiple lymph node metastasis	IV
2	F	26	Stomach	Multiple bone and lymph node metastasis, right intrapelvic dissemination	IV
3	F	39	Colon	Multiple lung, liver and bone metastasis, right periovarian dissemination	IV
4	M	41	Lung	Multiple brain, bone, lymph node, subcutaneous and left adrenal grand metastasis, multiple pleural dissemination	IV
5	M	70	Prostate	Multiple bone and lymph node metastasis	IV
6	M	89	Prostate	Multiple bone and lymph node metastasis	IV
7	F	48	Breast	Multiple bone, lung and lymph node metastasis	IV
H2
1	F	67	Ovary	Multiple lymph node metastasis	IV
2	M	55	Prostate	Multiple bone and lymph node metastasis	IV
3	M	67	Prostate	Multiple bone and lymph node metastasis	IV
4	M	78	Prostate	Multiple bone, lung and lymph node metastasis	IV
5	M	62	Ureter	Multiple lung and lymph node metastasis	IV
6	F	49	Liver	Multiple lung and lymph node metastasis, peritoneal dissemination	IV
7	F	82	Liver	Multiple lung, liver and lymph node metastasis	IV
8	M	82	Stomach	Multiple lung, liver and subcutaneous metastasis, peritoneal dissemination	IV
9	F	73	Pancreas	Multiple bone and lung metastasis, peritoneal dissemination	IV
10	M	82	Bile duct	Multiple bone metastasis	IV
11	M	69	Pancreas	Multiple lung, bone, liver and lymph node metastasis,	IV
12	F	68	Pancreas	Multiple lung and lymph node metastasis, subcutaneous and right adrenal grand metastasis, peritoneal dissemination	IV
13	F	58	Ovary	Multiple lymph node metastasis, peritoneal dissemination	IV
14	F	48	Breast	Whole meninges dissemination	IV
15	F	79	Urinary bladder	Multiple bone and lymph node metastasis	IV
16	M	35	Urinary bladder	Multiple bone, lung and lymph node metastasis, left adrenal grand metastasis	IV

Note: F: Female; M: male. The stage of the patients was confirmed according to the TNM classification.in Union for International Cancer Control.