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Table 1 Demographic information

From: PET radioligand binding to translocator protein (TSPO) is increased in unmedicated depressed subjects

  Healthy controls MDD-unmedicated MDD-medicated  
(n = 20) (n = 12) (n = 16)
  Mean SD Mean SD Mean SD F (2,45) p
Age 31.60 10.36 33.80 8.66 44.60 9.74 8.54 .001
BMI (kg/m2) 26.01 4.06 27.50 5.29 28.10 4.99 0.93 .40
Age of onset (years) 18.42 5.6 17.81 5.59 0.08 .78
Current episode (months) 40.67 59.55 57.44 92.86 0.30 .59
Length of illness (years)a 16.21 8.75 26.98 10.42 8.19 .008
MADRS total score 0.30 0.57 31.75 3.62 31.00 4.40 573.73 < .0001
  n % n % n % X 2 p
Sex (female) 10 50 5 42 6 38 0.59 .74
Race (Caucasian) 10 50 9 75 15 94 8.37 .02
Binding affinity (high) 12 60 10 83 9 56 2.51 .29
  1. MDD major depressive disorder, BMI body mass index, MADRS Montgomery-Asberg Depression Rating Scale
  2. aMissing data for n = 1 in MDD-medicated