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Table 1 Demographic and clinical characteristics

From: The association between variability, intensity, and persistence of suicidal ideation and prospective suicidal behavior in the systematic treatment enhancement program for bipolar disorder (STEP-BD) study

 

No suicidal behavior (n = 1863)

Suicidal behavior (n = 92)

Missing

No suicidal behavior

Suicidal behavior

Age at study entry

40.43 ± 12.23

36.39 ± 11.63

  

Gender

 Male

765 (41.1)

33 (35.9)

  

 Female

1098 (58.9)

59 (64.1)

  

Race

1 (< 0.1)

 

 White

1714 (92.0)

83 (90.2)

  

 Non-white

148 (8.0)

9 (9.8)

  

Hispanic ethnicity

92 (4.9)

1 (1.1)

1 (< 0.1)

 

SI variability

 SI score dispersion × 10a

2.87 ± 1.61

3.63 ± 1.56

  

SI intensity

 SI median score

  No SI

1482 (79.5)

59 (64.1)

  

  Rare/fleeting

167 (9.0)

12 (13.0)

  

  Several days

179 (9.6)

11 (12.0)

  

  Nearly every day

35 (1.9)

10 (10.9)

  

SI persistence

 Proportion of visits with SI × 10a

3.07 ± 2.34

4.07 ± 2.55

  

Affective instability

 Depressive symptoms

0.38 ± 0.11

0.40 ± 0.09

  

 Manic symptoms

0.22 ± 0.12

0.24 ± 0.13

  

Depression severity

3.91 ± 1.94

4.76 ± 1.99

  

Hx of suicide attempt

716 (38.4)

62 (67.4)

59 (3.2)

1 (1.1)

PDQ score

37.03 ± 16.03

40.83 ± 14.66

555 (29.8)

20 (21.7)

Alcohol abuse

197 (10.6)

19 (20.6)

117 (6.3)

7 (7.6)

Substance abuse

125 (6.7)

15 (16.3)

120 (6.4)

7 (7.6)

  1. SI suicidal ideation, PDQ Personality Disorders Questionnaire
  2. aA one unit change corresponds to a 10% change in variable (SI score dispersion or proportion of visits with SI)