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Table 1 Distribution of participants to the GIBIEX study according to main individual characteristics at enrollment

From: Clinical and genomic safety of treatment with Ginkgo biloba L. leaf extract (IDN 5933/Ginkgoselect®Plus) in elderly: a randomised placebo-controlled clinical trial [GiBiEx]

Characteristics N IDN 5933 Placebo p-value*
  47 27 [57.5%] 20 [42.5%]
Age [Mean ± SD] 47 79.2 ± 10.7 81.2 ± 10.3 NS
Age Tertiles [%] 47    NS
  < 77 years 17 11 [40.7%] 6 [30.0%]  
 78–85 15 8 [29.6%] 7 [35.0%]  
  ≥ 86 15 8 [29.6%] 7 [35.0%]  
Sex [% Male] 18 9 [33.3%] 9 [45.0%] NS
Marital Status [%] 43    NS
 Unmarried 11 8 [32.0%] 3 [16.7%]  
 Married 9 5 [20.0%] 4 [22.2%]  
 Divorced 1 1 [4.0%]  
 Widower 22 11 [44.0%] 11 [61.1%]  
Education [%] 35    NS
 No degree/Elementary 27 13 [76.5%] 14 [77.8%]  
 Middle School 4 4 [22.2%]  
 High School/University/Other 4 4 [23.5%]  
Current Weight Kg [Mean ± SD] 38 68.3 ± 12.8 67.9 ± 18.9 NS
Usual Weight Kg [Mean ± SD] 32 70.4 ± 10.6 67.5 ± 13.5 NS
Height mt. [Mean ± SD] 40 1.64 ± 0.1 1.63 ± 0.1 NS
Smoking habit [%] 47    NS
 Never Smoker 20 13 [48.2%] 7 [35.0%]  
 Current Smoker 7 4 [14.8%] 3 [15.0%]  
 Ex-smoker 12 7 [25.9%] 5 [25.0%]  
 Not responding 8 3 [11.1%] 5 [25.0%]  
  1. *t-test quantitative [for unequal variances] or Chi square qualitative [NS p > 0.05]
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