Plasma levels of lysophosphatidic acid in ovarian cancer versus controls: a meta-analysis

Table 1 Main characteristics and methodological quality of eligibly studies

First author	Year	Country	Ethnicity	Number			Age (years)			Methods
First author	Year	Country	Ethnicity	Tumor	Benign	Normal	Tumor	Benign	Normal	Methods
Wang DL [12]	2013	China	Asians	80	40	30	-	-	34 ~ 67	ELISA
Ding F [13]	2013	China	Asians	36	26	20	46.7	40.5	44.5	Bioassay
Liang HF [25]	2011	China	Asians	42	408	0	25 ~ 75			Bioassay
Liao JR-a [24]	2010	China	Asians	8	30	30	-	-	-	ELISA
Liao JR-b [24]	2010	China	Asians	40	30	30	-	-	-	ELISA
Lian XF [26]	2010	China	Asians	31	40	50	22 ~ 76	19 ~ 71	20 ~ 71	Inorganic phosphorus measurement
Bese T [11]	2010	Turkey	Asians	87	74	50	-	-	-	Bioassay
Yan ZT [21]	2009	China	Asians	76	35	29	-	-	-	ELISA
Wang H [23]	2009	China	Asians	30	32	36	28 ~ 68			ELISA
Chen YN [32]	2008	China	Asians	24	10	10	52	49	50	Bioassay
Cao XY [15]	2008	China	Asians	36	36	36	52.8	52.3	50.4	Phosphorus determination method
Zhang YM [20]	2007	China	Asians	50	44	20	29 ~ 73			ELISA
Li C-a [27]	2007	China	Asians	60	0	60	27 ~ 65			ELISA
Li C-b [27]	2007	China	Asians	60	0	60	27 ~ 65			ELISA
Lao M [28]	2007	China	Asians	80	40	40	19 ~ 68	19 ~ 65	18 ~ 55	ELISA
Pozlep B [19]	2007	Slovenia	Caucasians	142	0	78	48 ± 16.07		42.2	ELISA
Murph M [14]	2007	USA	Caucasians	26	27	25	-	-	-	ELISA
Duan ML-a [30]	2007	China	Asians	30	30	30	-	-	-	ELISA
Duan ML-a [30]	2007	China	Asians	30	30	30	-	-	-	ELISA
Du Y [31]	2005	China	Asians	37	0	30	53.5 ± 7.65		51.6 ± 6.57	ELISA
Guo HY-a [29]	2002	China	Asians	16	0	46	56.5 ± 8.64	-	-	ELISA
Guo HY-b [29]	2002	China	Asians	15	0	46	56.2 ± 10.9	-	-	ELISA
Xu Y [22]	1996	USA	Caucasians	34	0	48	-	-	-	ELISA

ISSN: 1476-511X