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Table 2 Sensitivity and specificity of the MDQ and BSDS to diagnose bipolar disorder, borderline personality disorder, and histrionic personality disorder according to several cut-off points

From: Using the mood disorder questionnaire and bipolar spectrum diagnostic scale to detect bipolar disorder and borderline personality disorder among eating disorder patients

 

BPII

BPD

Histrionic

 

N (sensitivity, specificity, LR+)

 

15

12

23

MDQ≥7 with moderate functional impairment

3 (0.20, 0.81, 1.1)

5 (0.42, 0.85, 2.8)

6 (0.26, 0.84, 1.6)

MDQ≥6 with moderate functional impairment

8 (0.53, 0.78, 2.4)

7 (0.58, 0.80, 2.9)

7 (0.30, 0.76, 2.1)

MDQ≥6 with minor functional impairment

8 (0.53, 0.78, 2.4)

7 (0.58, 0.77, 2.5)

8 (0.35, 0.75, 1.4)

MDQ≥5 with minor functional impairment

10 (0.67, 0.68, 2.1)

8 (0.67, 0.67, 2.0)

12 (0.52, 0.67, 1.6)

BSDS≥13

8 (0.53, 0.78, 2.4)

8 (0.67, 0.79, 3.2)

10 (0.44, 0.78, 2.0)

BSDS≥12

10 (0.67, 0.73, 2.9)

10 (0.83, 0.74, 3.2)

12 (0.52, 0.73, 1.9)

BSDS≥11

12 (0.80, 0.70, 2.7)

11 (0.92, 0.70, 3.1)

15 (0.65, 0.71, 2.2)

BSDS≥10

12 (0.80, 0.64, 2.2)

11 (0.92, 0.64, 2.6)

15 (0.65, 0.64, 1.8)

BSDS≥9

13 (0.88, 0.59, 2.2)

11(0.92, 0.58, 2.2)

18 (0.78, 0.82, 4.3)

 

BPII only

BPD only

 
 

N (sensitivity, specificity, LR+)

 
 

10

7

 

MDQ≥7 with moderate functional impairment

2 (0.20, 0.81, 1.1)

4 (0.57, 0.78, 2.6)

 

MDQ≥5 with minor functional impairment

7 (0.70,0.66, 2.1)

5 (0.71, 0.65, 2.0)

 

BSDS≥13

5 (0.50, 0.75, 2.0)

5 (0.71, 0.70, 2.4)

 

BSDS≥12

6 (0.60, 0.69, 1.9)

6 (0.86, 0.70, 2.9)

 

BSDS≥11

7 (0.70, 0.67, 2.1)

6 (0.86, 0.65, 2.5)

 
  1. MDQ: Mood Disorder Questionnaire, BSDS: Bipolar Spectrum Diagnostic Scale, BPII: bipolar II disorder, BPII only: bipolar II disorder without borderline personality disorder, BPD: borderline personality disorder, BPD only: borderline personality disorder without bipolar II disorder, Histrionic; Histrionic personality disorder, LR+: Likelihood Ratio for a positive test.