Table 4.

Logit analysis of rates of second retinal repair operation and adverse outcomes following rhegmatogenous retinal detachment in Medicare beneficiaries (odds ratios and 95% confidence intervals).

	Second retinal operation	Adverse outcomes	Adverse outcomes
Procedure Type			Sensitivity analysis
Pars Plana Vitrectomy (PPV)	1.084 (0.954,1.232)	2.019 (1.412,2.889)	2.007 (1.404,2.871)
Pneumatic retinopexy	2.804 (2.410,3.262)	0.403 (0.181,0.898)	0.403 (0.181,0.897)
Laser or Cryotherapy	0.878 (0.742,1.039)	0.77 (0.432,1.370)	0.769 (0.432,1.368)
Eye comorbidities
Severity of retinal detachment	1.03 (0.973,1.090)	0.925 (0.783,1.092)	0.925 (0.783,1.093)
Cataract	1.002 (0.903,1.113)	1.249 (0.919,1.696)	1.245 (0.917,1.691)
Cataract surgery	1.097 (0.986,1.221)	1.221 (0.888,1.680)	1.225 (0.890,1.685)
Myopia	1.038 (0.773,1.394)	1.42 (0.654,3.084)	1.437 (0.665,3.108)
Lattice degeneration	1.057 (0.765,1.461)	0.487 (0.119,1.986)	0.487 (0.120,1.987)
Proliferative vitreoretinopathy	1.944 (1.293,2.922)	1.497 (0.590,3.796)	1.468 (0.575,3.749)
Prior intraocular procedure	0.986 (0.827,1.176)	1.895 (1.281,2.802)	1.891 (1.278,2.797)
Prior severe complication	1.142 (0.756,1.725)
Prior visual impairment	0.912 (0.718,1.160)
Demographic characteristics
Male	1.107 (1.000,1.225)	0.972 (0.721,1.312)	0.969 (0.719,1.308)
Black	0.664 (0.474,0.931)	0.569 (0.205,1.578)	0.574 (0.208,1.584)
Other race	0.93 (0.658,1.314)	1.421 (0.618,3.271)	1.415 (0.615,3.254)
Age	0.989 (0.981,0.998)	1.051 (1.027,1.075)	1.051 (1.027,1.075)
Medicaid	1.107 (0.893,1.374)	1.425 (0.831,2.445)	1.443 (0.843,2.469)
Cohort
1993–1997	0.867 (0.762,0.988)	1.242 (0.839,1.837)	1.228 (0.830,1.816)
1998–2002 (0.781,1.005)	0.886	1.208 (0.826,1.765)	1.203 (0.823,1.757)

Sensitivity analysis using ordered logit (Adverse outcomes=2 for multiple diagnoses, 1 for 1 diagnosis)