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Table 1 Demographics, baseline characteristics, and surgical data of patients with aCME and nCME

From: Macular edema after rhegmatogenous retinal detachment repair: risk factors, OCT analysis, and treatment responses

  aCME nCME P value Adjusted P value1
Demographic data
 Number of eyes 25 (25%) 74 (75%)   
 Follow-up (months) 21.4 ± 12.1 20.4 ± 10.8 0.87  
 Sex, Female 8 (32%) 38 (34%) 0.09  
 Age (years) 64.1 ± 11.6 56.7 ± 18.0 0.09  
Clinical data
 Right eye 11 (44%) 40 (54%) 0.38  
 Glaucoma 4 (16%) 6 (8%) 0.26  
 Lens status    < 0.001 0.008
  Phakic 1 (4%) 44 (60%)   
  Pseudophakic 14 (56%) 28 (38%)   
  Aphakic 10 (40%) 2 (3%)   
Macula offa 20/24 (83%) 31/70 (44%) 0.001 0.06
PVR Stage Ca 15/24 (63%) 5/74 (7%) < 0.001 0.09
Final VA (LogMAR) 0.85 ± 0.80 0.20 ± 0.30 < 0.001 0.012b
ERM 18 (72%) 28 (38%) 0.005  
Surgical details
 Number of surgeries 3.5 ± 1.8 1.4 ± 0.9 < 0.001  
 Multiple PPV 21 (84%) 17 (23%) < 0.001 c
 Referred after surgery elsewhere 12 (48%) 5 (7%) < 0.001 0.31
 Number of surgery outside 1 ± 1.3 0.095 ± 0.4 < 0.001  
 Type of surgery    < 0.001 0.21
  SB 1 (4%) 25 (34%)   
  PPV 7 (28%) 28 (38%)   
  PPV + SB 17 (68%) 21 (28%)   
Tamponade agent    < 0.001 0.10
 None/Air 1 (4%) 24 (32%)   
 Gas (SF6 or C3F8) 8 (32%) 46 (62%)   
Silicone oil 16 (64%) 4 (5%)   
Cryotherapya 4/24 (17%) 30/73 (41%) 0.047 0.036
Retinectomy 9 (36%) 4 (5%) < 0.001 0.009
PFCLa 18/23 (78%) 35/47 (75%) 0.73 0.38
  1. aCME all (chronic + transient) cystoid macular edema, nCME no cystoid macular edema, PVR proliferative vitreoretinopathy, VA visual acuity, LogMAR (logarithm of the minimum angle of resolution), PPV pars-plana vitrectomy, ERM epiretinal membrane, SB scleral buckle, PFCL perfluorocarbon liquid
  2. aDenominators are provided if the number is less than the total number of eyes in the category due to missing or incomplete data
  3. bFinal VA adjusted P value from a model with covariates for total number of surgeries and Macula on/off
  4. cAdjusted model not possible due to collinearity of Multiple PPV with number of surgeries (i.e. those with Multiple PPV had greater than 2 surgeries, while those with no PPV had fewer)
  5. 1P-value for difference after adjustment for total number of surgeries