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Table 1 BDI factor analysis *

From: The relationship between mood and sleep in different female reproductive states

  F1 F2 F3 F4 Sumsqr
#1 sadness 0.099 0.445 0.304 0.268 0.372
#2 pessimism −0.027 0.032 0.306 0.213 0.141
#3 past failure 0.243 0.224 0.039 0.493 0.354
#4 loss of pleasure −0.178 0.980 0.025 −0.005 0.993
#5 guilty feelings 0.390 0.175 0.258 0.227 0.301
#6 punishment feelings 0.928 0.286 −0.005 −0.239 1.000
#7 self-dislike 0.295 −0.073 −0.034 0.199 0.133
#8 worthlessness −0.022 0.172 0.289 0.147 0.135
#10 crying 0.062 0.051 0.322 −0.031 0.111
#11 irritability 0.012 0.207 0.099 0.313 0.151
#12 lost interest in people 0.168 0.375 0.183 0.060 0.206
#13 indecisiveness −0.033 0.133 0.158 0.582 0.383
#14 looking ugly 0.115 0.445 −0.019 0.238 0.269
#15 impaired work capability 0.074 −0.149 −0.036 0.482 0.262
#16 changed sleep pattern 0.153 0.087 0.218 0.554 0.385
#17 fatigue or tiredness 0.003 0.175 −0.105 0.476 0.269
#18 lost appetite −0.033 −0.110 0.984 −0.104 0.993
#20 worries about health 0.295 0.486 0.006 0.099 0.333
#21 lost interest in sex −0.077 0.377 0.058 0.521 0.423
Sumsqr 1.372 2.211 1.544 2.088  
  1. *Items with no (# 9: suicidal ideation) or one (# 19: weight loss) positive answer excluded from the analysis. Weighted loadings at each factor in boldface.
  2. Abbreviations: F1 punishment/guilty feelings, F2 dissatisfaction, F3 depressive-emotional symptoms, F4 depressive-somatic symptoms.