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Table 1 Clinical and demographic characteristics of melancholic (Mel), non-melancholic (N-Mel) and control groups

From: Bias and discriminability during emotional signal detection in melancholic depression

Test Variables Mel N-Mel Control Group Contrasts
Age 41.7 (13.5) 42.4 (9.1) 38.6 (15.2) § t = -0.19, p = 0.85 ‡ t = 0.68, p = 0.85 † t = 0.96, p = 0.34
% Female 65% 65% 55% § χ 2 = 0.00, p = 1.00 ‡ χ 2 = 0.42, p = 0.52 † χ 2 = 0.42, p = 0.52
Years of education 14.4 (2.7) 14.1 (2.7) 17.1 (3.7) § t = 0.43, p = 0.41 ‡ t = -2.66, p <0.01 † t = -3.00, p <0.01
Estimated IQ 108.1 (8.5) 109.2 (6.4) 114.3 (11.8) § t = -0.46, p = 0.65 ‡ t = -1.91, p = 0.06 † t = -1.70, p = 0.10
QIDS-SR 16 16.6 (4.0) 16.6 (4.4) 0.9 (1.2) § t = 0.00, p = 1.00 ‡ t = 16.92, p <0.01 † t = 15.39, p <0.01
STAI-State 49.1 (15.3) 48.3 (9.7) 28.7 (8.1) § t = 0.19, p = 0.85 ‡ t = 5.28, p <0.01 † t = 7.00, p <0.01
STAI-Trait 59.1 (11.4) 62.9 (8.3) 34.2 (7.4) § t = -1.20, p = 0.24 ‡ t = 8.17, p <0.01 † t = 11.55, p <0.01
CORE (Non-interactiveness) 4.4 (3.3) 0.9 (1.7) - § t = 4.28, p <0.01
CORE (Retardation) 4.9 (4.1) 1.6 (2.9) - § t = 3.00, p <0.01
CORE (Agitation) 1.5 (2.4) 0.2 (0.7) - § t = 2.38, p < 0.05
CORE Total 10.8 (7.6) 2.7 (4.4) - § t = 4.14, p <0.01
GAF 54.3 (15.6) 67.5 (9.7) 94.5 (2.2) § t = -3.23, p <0.01 ‡ t = -11.43, p <0.01 † t = -12.17, p <0.01
SSRI% yes (n) 30% (6) 40% (8) - § χ 2 = 9.69, p <0.01
Other med% yes (n) 80% (16) 35% (7) - § χ 2 = 27.22, p <0.01
  1. Mean (SD) reported for all variables except for gender (% Female), SSRI (% yes and n) and Other med (% yes and n).
  2. § Melancholic vs. Non-melancholic.
  3. ‡ Melancholic vs. Control.
  4. † Non-melancholic vs. Control.