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Table 2 Associations between the occurrence of re-detachment and type of retinopexy, risk factors (primary PVR, silicon oil) and patient’s characteristics (macula status)

From: Comparative study of endolaser versus cryocoagulation in vitrectomy for rhegmatogenous retinal detachment

Predictor Re-detachment Chi-squared Test
No (n) Yes (n) Yes (%) X2 p-value
Retinopexy
 Cryocoagulation 435 57 11.6 2.35 0.309
 Endolaser 201 18 8.2   
 Combined 278 28 9.2   
PVR
 No 841 83 9.0 13.21 0.0003
 Yes 73 20 21.5   
Tamponade
 Gas 803 76 8.6 14.45 0.0001
 Silicon oil 111 27 19.6   
Macula status
 On 397 33 7.7 4.47 0.034
 Off 517 70 11.9