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Table 1 Demographics and baseline characteristics

From: Collagen matrix vs mitomycin-C in trabeculectomy and combined phacoemulsification and trabeculectomy: a randomized controlled trial

   Mitomycin-C (n = 48) Collagen matrix (n = 45) p-Value (Fisher’s Exact Test)
Sex N (% Male) 28 (58%) 21 (47%) 0.18
Age (Years) Mean (SD) 71.1 (10.0) 69.4 (10.7) 0.41
  Median (IQR) 71.5 (65–79) 71.0 (63–79)  
Race European-Derived 38 (79%) 33 (73%) 0.42 (one p-value for multicategory race)
  African-Derived 8 (17%) 9 (20%)  
  Asian 1 (2%) 2 (4%)  
  Other 1 (2%) 1 (2%)  
Diagnosis N (%) Primary Open Angle Glaucoma 43 38 0.35 (one p-value for multicategory diagnosis)
  Pigmentary Glaucoma 0 3  
  Primary Angle Closure Glaucoma 3 2  
  Corticosteroid Induced Glaucoma 1 0  
  Pseudoexfoliation Glaucoma 1 1  
  Mixed Mechanism 0 1  
Visual Acuity (Log MAR) Mean (SD) 0.18 (0.26) 0.17 (0.23) 0.81
  Median (IQR) 0.10 (0–0.21) 0.10 (0–0.30)  
Visual Field Mean Deviation Mean (SD) −14.1 (10.7) −12.9 (8.6) 0.55
  Median (IQR) −14.4 (−23.3 − −6.4) −14.1 (−19.9 − −5.8)  
Baseline IOP (mm Hg) Mean (SD) 20.4 (6.0) 21.2 (6.1) 0.49
  Median (IQR) 19.8 (16.0–23.6) 19.0 (17.0–26.0)  
Number of Medications Mean (SD) 3.21 (1.13) 3.07 (1.00) 0.53
  Median (IQR) 3 (2–4) 3 (2–4) 0.48
  1. SD standard deviation, IQR interquartile range, Log MAR logarithm of the minimum angle of resolution, IOP intraocular pressure