Table II.

Baseline data of the patients in the included studies

Author	Groups	Patients (n)	Nodules (n)	Age [years]	Gender (M/F)	Diameter [mm]	Lesion-pleura distant [mm]
Deng [13]	Coil	22	22	56	7/15	8.9	19
	Hook-wire	21	21	62	11/10	8.9	18
Hu [14]	Coil	79	79	53.9	34/45	8.7	9.4
	Hook-wire	33	33	52.6	13/20	8.0	7.9
Hwang [15]	Coil	54	54	62.2	29/25	12.6	9.4
	Hook-wire	45	45	63.6	26/19	13.0	9.1
Liu [16]	Coil	76	76	56.79	38/38	9.58	21.84
	Hook-wire	122	122	57.47	59/63	8.28	19.82
Lu [17]	Coil	60	60	52 for all	Not given	Not given	Not given
	Hook-wire	52	52		Not given	Not given	Not given
Rostambeigi [18]	Coil	20	20	62	13/7	10.9	12
	Hook-wire	26	26	60.5	16/10	9.9	18
Wu [19]	Coil	85	88	54.3	33/52	14.0	15.3
	Hook-wire	30	31	54.5	14/16	14.1	13.7
Yang [20]	Coil	71	71	55.4	24/47	9.3	12.3
	Hook-wire	71	71	56.4	26/45	9.4	12.3

M – male, F – female.