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Table 3 Equivalent summed item response theory score estimates for subjects without suicidal ideation at the baseline (NSI) and subjects with suicidal ideation at the baseline (SI)

From: Suicidal ideation during treatment of depression with escitalopram and nortriptyline in Genome-Based Therapeutic Drugs for Depression (GENDEP): a clinical trial

NSI SI
N % θ MADRS HRSD-17 BDI n % θ MADRS HRSD-17 BDI
108 33.4 -0.425 0 0 0 3 0.6 0.613 0 2 1
7 2.2 -0.392 0 0 - 1 0.2 0.626 2 0 -
1 0.3 -0.27 - 0 0 44 9.3 0.655 1 1 1
2 0.6 -0.173 1 0 1 8 1.7 0.707 2 0 1
15 4.6 -0.058 0 0 1 2 0.4 0.742 1 1 2
3 0.9 -0.036 0 0 2 1 0.2 0.746 1 1 3
6 1.9 0.114 0 1 0 2 0.4 0.775 1 2 0
55 17.0 0.163 1 0 0 1 0.2 0.809 2 0 2
6 1.9 0.196 1 0 - 46 9.7 0.845 2 1 0
2 0.6 0.259 1 - 0 2 0.4 0.849 2 - 0
7 2.2 0.288 0 1 1 2 0.4 0.885 - - 1
18 5.6 0.331 1 0 1 7 1.5 0.943 1 2 1
1 0.3 0.353 1 - - 5 1.1 0.962 2 1 -
84 26.0 0.494 1 1 0 79 16.7 0.999 2 1 1
2 0.6 0.539 2 0 0 1 0.2 1.076 2 - 1
6 1.9 0.569 1 1 - 3 0.6 1.14 2 1 2
       2 0.4 1.153 2 1 3
       9 1.9 1.172 2 2 0
       3 0.6 1.206 3 1 0
       63 13.3 1.317 2 2 1
       5 1.1 1.318 2 2 -
       7 1.5 1.356 3 1 1
       7 1.5 1.444 2 2 2
       4 0.9 1.467 2 2 3
       2 0.4 1.483 3 1 2
       1 0.2 1.492 4 1 1
       4 0.9 1.501 3 2 0
       5 1.1 1.548 2 3 1
       1 0.2 1.572 2 4 1
       50 10.6 1.602 3 2 1
       4 0.9 1.627 3 2 -
       12 2.5 1.713 3 2 2
       2 0.4 1.751 3 2 3
       1 0.2 1.774 2 3 3
       9 1.9 1.827 3 3 1
       17 3.6 1.841 4 2 1
       1 0.2 1.893 4 2 -
       2 0.4 1.928 3 3 2
       8 1.7 1.95 4 2 2
       2 0.4 1.983 3 3 3
       1 0.2 2.01 4 2 3
       11 2.3 2.079 4 3 1
       1 0.2 2.172 4 3 -
       13 2.8 2.199 4 3 2
       2 0.4 2.324 4 3 3
       1 0.2 2.325 4 4 0
       1 0.2 2.387 4 4 1
       2 0.4 2.453 5 3 1
       1 0.2 2.515 4 4 2
       1 0.2 2.553 5 3 2
       4 0.9 2.677 5 3 3
       1 0.2 2.911 6 3 -
       2 0.4 2.954 6 3 3
       1 0.2 3.086 6 4 2
       1 0.2 3.106 - 4 -
       2 0.4 3.241 6 4 3
  1. BDI = Beck Depression Inventory; HRSD = Hamilton Rating Scale for Depression; MADRS = Montgomery-Asberg Depression Rating Scale.