Patterns of regional lymph node metastasis of nasopharyngeal carcinoma: A meta-analysis of clinical evidence

BMC Cancer

Table 1 Characteristics of the 13 included studies

No	First Author	n	Any LN	Cervical LN	RLN	Level I LN	Level Ib LN	Level II LN	Level III LN	Level lV LN	Level V LN	Level VI LN	Parotid L	SCF LN
1	Tang	924	786		679		24	590	226	56	87		6	31
2	Wang	618	543	508	392	508	21	506	237	72	200		7
3	Liu	275	215	175	175	175		174	65	16	18		4	8
4	King	150	115	115	108	115	3				66		2
5	Ng	202	193		162			190	172	22				31
6	Fuwa	94	82	82		82
7	Ng	101	89		73		2	85	54	31	24	2	3	20
8	Lu	159	148	139	108	139
9	Lam	44			39			13
10	Chong	114	91	58	59	58
11	Ng	67		42	39	42
12	Kam	63	44	44		44
13	Wolden	109	90	90		90

Abbreviations: LN, lymph nodes; RLN, Retropharyngal LN; SCF, supraclavicular fossa.

ISSN: 1471-2407