Table 3.

Association between the occurrence of re-detachment and phacoemulsification for high-risk groups

	Re-detachment			Chi-squared test
	No (n)	Yes (n)	Yes (%)	X2	p-value
Primary PVR (n=93) Phaco
No	47	10	17.5	0.83	0.362
Yes	26	10	27.8
Primary silicone oil (n=138) Phaco
No	66	14	17.5	0.25	0.617
Yes	45	13	22.4

Abbreviation: PVR, proliferative vitreoretinopathy.