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Table 1 Clinical characteristics and memory scores of the participants by group

From: Lower pattern recognition memory scores in anorexia nervosa

  Clinical Group (n = 46) Healthy Controls
(n = 56)
Between-groups difference
Mean (SEM) Mean (SEM) t df p d
Age (Years) 30.43 (1.44) 26.63 (1.09) −2.14 100 0.03* −0.43
Body Mass Index (kg/m2) 15.00 (0.27) 22.07 (0.53) 11.33 100 < 0.001* 2.26
Trait Anxiety (total score) 65.11 (1.93) 39.40 (1.44) −11.0 100 < 0.001* −2.19
EDE-Q Global Score 3.97 (0.22) 0.92 (0.09) −13.17 100 < 0.001* −2.62
 EDE-Q Restraint 3.64 (0.51) 0.57 (0.10) −6.10 100 < 0.001* −1.21
 EDE-Q Eating Concern 3.08 (0.26) 0.36 (0.06) −10.85 100 < 0.001* −2.16
 EDE-Q Shape Concern 4.65 (0.21) 1.58 (0.15) −12.46 100 < 0.001* −2.48
 EDE-Q Weight Concern 4.46 (0.22) 1.22 (0.13) −12.90 100 < 0.001* −2.57
Pattern Separation (LDI) 0.33 (0.03) 0.29 (0.03) −1.20 100 0.231 −0.24
Recognition Memory 0.74 (0.02) 0.75 (0.02) 0.75 94 0.451 0.09
  N (% of group) N (% of group) X2 (p-value) d
Highest level of education    9.18 (0.01)* 0.63
 GCSE 6 (13%) 3 (5%)   
 A-Levels 18 (39%) 10 (18%)   
 Higher education 22 (48%) 43 (77%)   
Average sleep duration    30.79 (< 0.001)* 1.32
 >8 h 9 (20%) 2 (39%)   
 6–7 h 9 (20%) 28 (50%)   
 5–6 h 17 (37%) 6 (11%)   
 0–5 h 11 (23%) 0 (0%)   
Medication use    44.70 (<.001)* 1.77
Antidepressant 20 (44%) 0 (0%)   
Antipsychotic + Antidepressant 7 (15%) 0 (0%)   
  1. Note. EDE-Q Eating Disorder Examination Questionnaire, LDI Lure Discrimination Index, SEM standard error of the mean, *p<0.05, The pooled test statistic for this categorical variable was calculated using the median value [57]. For measures with multiple subscales, p-values which remained significant after applying Bonferroni Correction are displayed in bold