Table 2. Serum HMGB1 levels (ng/ml) in TNM stages of patients with HCC.

Author	Sample size	I	II	III	IV	p	Detect method
Gou [72]	82	29.1±5.0	57.7±14.2	101.6±14.8	176.0±32.5	<0.01	Elisa
Cheng [70]	161	30.2±5.9	58.9±20.0	100.9±23.4	175.8±47.6	<0.0001	Western-blot