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Table 1 Baseline patients demographics for different gauge groups

From: Comparison of outcomes between 20, 23 and 25 gauge vitrectomy for idiopathic macular hole

Parameter All eyes, n=142 20 Gauge, n=37 23 Gauge, n=55 25 Gauge, n=50 P value
Age, years      
Mean ±SD 67.8±8.5 69±8.6 67±8.3 66.8±8.5 0.263a
Range 46-87 47-87 47-86 46-86  
Gender, n, %      
Female 98 (69 %) 27 (73 %) 38 (69.1 %) 33 (66 %) 0.785b
Male 44 (31 %) 10 (27 %) 17 (30.9 %) 17 (34 %)  
Preoperative VA      
Median (logMAR) 0.70 0.80 0.70 0.60 0.237c
  0.18-2.30 0.30-2.30 0.18-1.82 0.40-1.70  
Range (logMAR)      
Lens Status, n, % 116 (81.7 %) 27 (73 %) 48 (87.3 %) 41 (82 %) 0.229b
Phakic 26 (18.3 %) 10 (27 %) 7 (12.7 %) 9 (18 %)  
Pseudophakic      
Stage of MH, n, % 47 (33.1 %) 9 (24.3 %) 22 (40 %) 16 (32 %)  
Stage 2 54 (38 %) 18 (48.6 %) 19 (34.5 %) 17 (34 %) 0.226b
Stage 3 36 (25.4 %) 8 (21.6 %) 11 (20 %) 17 (34 %)  
Stage 4      
ICG 137 (96.5 %) 52 (94.5 %) 52 (94.5 %) 49 (98 %) 0.760b
  1. Abbreviation: n number, % percent
  2. aANOVA
  3. bChi-square test
  4. cKruskal-Wallis test