Table 1.

Basic characteristics and quality evaluation of included studies

Study	Area	Tumor type	Gender (male/female)	Age (year)	N	Research index
Chen 2013	China	Esophageal cancer	50/28	61.9 ± 8.48	78	†
He 2014	China	Endometrial cancer	87	—	87	‡  †
Kim 2015	Korea	Cervical cancer	111	50.6 ± 1.59	111	†
Lv 2013	China	Esophageal cancer	56/37	—	93	‡  †
Nie 2013	China	Nasopharyngeal carcinoma	109/51	46	160	‡  †  §
Takayuki 2013	Japan	Non‐small cell lung cancer	49/28	—	77	†
Wu 2014	China	Colon cancer	64/56	—	120	†
Liu 2013	China	Non‐small cell lung cancer	32/10	—	42	‡
Qiu 2014	China	Ovarian cancer	64	—	64	†  §
Qiu 2015	China	Ovarian cancer	68	—	68	§
Yan2014	China	Bladder cancer	80/30	—	110	§

^† HOTAIR expression with lymph node metastasis in carcinoma tissue.

^‡ HOX antisense transcript RNA (HOTAIR) expression in para‐carcinoma, cancer or normal tissues.

^§ HOTAIR expression in different pathologically graded carcinoma tissue.