Usefulness of Discarded Vitreous Samples from Routine Vitrectomy

Table 2

Characteristics of the diabetic and nondiabetic vitrectomy samples.

	Nondiabetic				Diabetic				value
	Absence/negative	Low	High	Total presence	Absence/negative	Low	High	Total presence	1	2
Sample characteristics
Material	0	31	36	67	0	21	37	58	NS	—
Matrix	0	35	32	67	0	29	29	58	NS	—
Cell type
Spindle cells	13	42	12	54	8	29	21	50	NS	NS
Retinal pigment epithelial cells	34	13	20	33	21	19	18	37	NS	NS
Histiocytes	30	21	16	37	14	24	20	44	NS	0.016
Inflammatory cells	8	53	6	59	1	48	9	57	NS	0.028
Erythrocytes	53	10	4	14	27	12	19	31	<0.001	<0.001
Vascular findings
Vessels with endothelium	60	7	0	7	33	14	11	25	<0.001	<0.001
Aneurismatic dilatation	66	1	0	1	54	3	1	4	NS	NS
Ghost vessels	58	5	4	9	42	8	8	16	NS	0.049

value 1: stratified quantitative analysis; value 2: qualitative analysis (presence or absence); NS: nonsignificant.