Table 2 Spearman's correlation between MADRS and GDS-15 items and total score correlation in the main sample (N = 387)

MADRS1 "Apparent sadness"

.238^b

.206^b

.275^b

.283^b

.354^b

0.079

.391^b

.334^b

0.059

0.099

.334^b

.365^b

.225^b

.395^b

.190^b

.515^b

MADRS2 "Reported sadness"

.338^b

.176^b

.362^b

.272^b

.400^b

0.08

.380^b

.339^b

-0.02

0.033

.368^b

.362^b

.225^b

.353^b

.123^a

.508^b

MADRS3 "Inner tension"

.165^b

.109^a

0.083

0.04

.265^b

.173^b

.181^b

.128^a

0.027

0.057

0.054

0.082

0.048

0.058

0.09

.230^b

MADRS4 "Reduced sleep"

.112^a

.127^a

.128^a

0.06

0.071

0.037

.117^a

.160^b

0.018

-0.027

.181^b

0.035

.120^a

.109^a

.105^a

.199^b

MADRS5 "Reduced appetite"

.115^a

.173^b

.210^b

.134^b

.262^b

.106^a

.246^b

.256^b

0.031

0.012

.329^b

.260^b

.171^b

.244^b

.114^a

.364^b

MADRS6 "Concentration difficulties"

.147^b

0.09

.124^a

0.06

.202^b

0.045

.178^b

.187^b

0.056

.139^b

.149^b

.186^b

.128^a

.215^b

.182^b

.276^b

MADRS7 "Lassitude"

.166^b

0.054

.186^b

.180^b

.173^b

0.031

.137^b

.287^b

0.073

0.06

.154^b

.242^b

.241^b

.289^b

.197^b

.339^b

MADRS8 "Inability to feel"

.113^a

.151^b

.183^b

.149^b

.215^b

0.058

.257^b

.103^a

0.021

0.056

.197^b

.172^b

.168^b

.179^b

0.069

.292^b

MADRS9 "Pessimistic thoughts"

.211^b

.132^b

.213^b

.282^b

.246^b

.160^b

.247^b

.198^b

0.062

0.039

.266^b

.366^b

.194^b

.291^b

.140^b

.419^b

MADRS10 "Suicidal thoughts"

.190^b

.190^b

.300^b

.194^b

.248^b

0.05

.347^b

.267^b

-0.01

0.047

.326^b

.370^b

.257^b

.380^b

0.056

.450^b

MADRS Total

.274^b

.272^b

.316^b

.251^b

.335^b

.162^b

.381^b

.357^b

0.056

.105^a

.350^b

.399^b

.312^b

.370^b

.216^b

.603^b