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Table 3 Between-group differences for sustained attention measures

From: Poorer sustained attention in bipolar I than bipolar II disorder

  Bipolar disorder (BP), mean ± SD Control, (N = 20) Analysis Bonferroni post hoc test
  BP I (N = 22) BP II (N = 29) Mean ± SD F (2,68) P value  
Hit RTa    318.63 ± 16.71 7.648 0.001 A > B, C
HRT SEa 5.159 ± 0.267 4.070 ± 0.282 4.169 ± 0.383 5.252 0.008 A > B, C
Omission errorsb 1.764 ± 0.552 2.067 ± 0.543 1.212 ± 0.75 0.313 0.733  
Commission errorsb 19.490 ± 1.374 14.142 ± 1.351 12.405 ± 1.87 6.182 0.004 A > B, C
d'b 40.732 ± 7.779 73.825 ± 7.652 77.799 ± 10.57 6.313 0.003 B, C > A
  1. A = BP I; B = BP II; C = control.
  2. aControlling for HDRS, YMRS, educational level and age (MANCOVA).
  3. bControlling for HDRS, YMRS, educational level, age and hit RT (MANCOVA).
  4. d' = target detection; HDRS = Hamilton Depression Rating Scale; Hit RT = hit reaction time; HRT SE = hit RT standard error; YMRS = Young Mania Rating Scale.
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