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Table 1 Demographic and descriptive data of patients from study and control groups

From: Subconjunctival 0.1% epinephrine versus placebo in maintenance of mydriasis during vitrectomy: a randomized controlled trial

Variable Study Control P
N 45 44  
Age (years) 63.7 (± 14.6) 57.9 (± 14.1) 0.253a
Sex (male/female) 27/18 21/23 0.291b
Light/dark irides 9/36 9/35 0.583b
Systemic hipertension 48.9% 59.0% 0.397b
Procedure time (min) 50.3 (± 20.7) 49.5 (± 23.0) 0.911a
Blood sugar level (mg/dL) 129.7 (± 42.5) 116.8 (± 36.4) 0.359a
Preoperative MABP (mmHg) 98.9 (± 11.9) 102.9 (± 12.8) 0.114a
Posoperative MABP (mmHg) 104.8 (± 10.2) 105.7 (± 8.2) 0.629a
  1. MAPB mean arterial blood pressure, Min minutes
  2. aTwo-sample Student’s t test. Values expressed in means (± standard deviation)
  3. bPearson Chi square test