. 2020 Jun 19;20:241. doi: 10.1186/s12886-020-01498-7

Table 5.

Number of injections within 6 months and 12 months between ischemia and non-ischemia in each group

Variable		Non-ischemic (N = 37)		Ischemic (N = 27)		P value for differences in injection numbers between non-ischemia and ischemia^a
Median (Quartile)		N	Injection numbers	N	Injection numbers
Within 6 months	IVR	19	4 (3, 4)	11	3 (3, 4)	0.4026
Within 6 months	IVR + Laser	18	4 (4, 4)	16	3.5 (3, 4.5)	0.2967
Within 12 months	IVR	19	4 (3, 6)	11	3 (3, 7)	0.9273
Within 12 months	IVR + Laser	18	6 (6, 7)	16	4 (3, 6.5)	0.1274

^aAs injections during follow up were abnormally distributed, median (IQR) and Wilcoxon analysis were used