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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Bipolar Disord. 2013 Jul 5;15(5):507–523. doi: 10.1111/bdi.12094

Table 2.

Study and sample characteristics

Study Design/setting Na Age,
years
[range]a
Sex (%
males)/racea
Diagnosis and
clinical state (%)a
Age of
onset,
yearsa
Comorbidities
and trauma (%)a
Family historya Suicide measure Suicidality (%)a
Algorta et al.
2011 (50)
CS

Outpatients
with mental
illness (n =
828)
138 11.2
[5–18]
55.8

NR
BD-I: 19.6
BD-II: 13.0 (mixed
features: 76% BD-
I/BD-II)
BD-NOS: 32.6
Cyclothymic d/o:
34.7
NR NR NR K-SADS-P/K-
SADS
Past: SI: 17.4, SA: 9.4
Current: SI: 44.9, SA:
6.5
Axelson et al.
2006 (47)b
CS (COBY)

Inpatients +
outpatients
438 12.7
[7–18]
53.2

White: 81.7
BD-I: 58.2
BD-II: 6.8
BD-NOS: 34.9
C-GAS: 54.6
K-SADS-MRS:
22.9
K-SADS-DEP:
14.8
PSY: 27.6
9.3 ADHD: 59.5
MDD: 52.7
ANX: 39.7
ODD: 38.5
CD: 12.8
SUD: 8.9
PD: 5.4
MDD: 68.0
Mania: 32.2
SUD: 57.8
Schizophrenia: 1.1
Suicidality: (SA: 29.7,
SC: 4.7)
K-SADS-P/K-
SADS
Axelson (2006):
Past: SI: 76.2, SA
: 30.7

Goldstein (2005):
Past: SA: 32 (lethality:
very high = 11,
moderate = 16)
Goldstein et
al. 2012 (8)
LT (COBY)

Inpatients +
outpatients
(follow-up: 5
years)
413 12.6
[7–17]
53

White: 82
BD-I: 59.1
BD-II: 6.8
BD-NOS: 34.1
MS: 26.9
PSY: 22.3
Hopelessness: 87.5
NR ADHD: 59.3
ANX: 39.2
CD: 11.9
SUD: 8.5
PD: 5.3
ODD: 3.9

Trauma (sexual or physical): 19.6
DEP: 82.1
SUD: 69
Mania/hypomania:
50.8
SA: 40.7
K-SADS-P/K-
SADS
Past: SI: 75.1, SA:
29.5
Prospective: SA after
5 years follow-up:
18.0(≥ 2 SAs: 8)
Bhangoo et
al. 2003 (51)
CS

Outpatients
(ascertained
via web
survey)
87 EPI: 11.2
CHR:
11.1
[6–17]
EPI: 86
CHR: 84

NR
EPI: 39
CHR: 61
EPI: 6.1
CHR:
6.3
ADHD: EPI =
77, CHR = 67
ODD: EPI = 65,
CHR = 81
CD: EPI = 22,
CHR = 33
NR NR NR
Bronisch et
al. 2005 (52)
LT
Community
sample (n =
3,021) (mean
follow-up: 42
months)
96 NR
[14–24]
NR/NR Mania: 42.7
Hypomania: 56.3
NR NR NR M-CIDId Mania
Past: SI: 46.9, SA:
14.6
Prospective: SI: 17.1,
SA: 2.4
Hypomania

Past: SI: 31.3, SA: 7.3
Prospective: SI: 12.7,
SA: 3.6
Craney and
Geller 2003 (53)
LT

Outpatients
93 10.9
[7–16]
61.3

White: 89.3
BD-I: 100
Psychosis: 60.2
Mixed mania: 54.8
Rapid cycling: 77.4
6.8 ADHD: 87.1
ODD/CD: 78.1
NR NR Suicidality (follow-up
duration not specified):
24.7
Dickstein et al. 2005 (54) CS

Outpatients
31 BD:
12.7
[NR]
58.1
NR
BD-I: 77.4
BD-II: 22.6
BD:
10.3
ED: 5.6
ANX: 77.4
ADHD: 67.7
ODD: 38.7
PSY (lifetime):
25.8
CD: 3.2
NR Clinical interview Past: SI: 93.5, SA:
64.5
Dilsaver et
al. 2005 (55)
CS

MDE
outpatients (n
= 247)
82 NR
[12–17]
37.2

NR
BD-I/BD-II: NR
Mixed states: 82
NR NR NR Clinical interview Current: SI: 67.1, SA:
57.1
Faedda et al.
2004 (56)
LT, CS

Private mood
disorder clinic
(mean follow-
up: 18
months)
82 10.6
[3–17]
65.9

NR
BD-I: 52.4
BD-II: 40.2
Cyclothymia: 7.3
PSY: 31.7
9.6 OCD: 26.8
ANX: 23.2
LD: 15.9
ADHD: 11.0
ED: 4.9
SUD: 3.7
Tourette’s: 3.7
Mood d/o or SUD:
90.2
Questionnaire +
semi-structured
interview
Current: SI: 30.0
Friedman et
al. 1984 (57)
CS, DEP
Inpatients (n
=34)
8 NR
[NR]
NR/NR NR NR NR NR SADS Past: SA: 37.5
Current: SI: 37.5
Kutcher et al.
1990 (58)
CS

Euthymic
inpatients +
outpatients
22 17.5
[NR]
55
NR
Euthymic: 100
Personality d/o: 35
16.4 Personality d/o:
35
NR NR Past: SA: 15
Lewinsohn et
al. 1994 (48)c
Lewinsohn et
al. 2003 (49)c
CS, LT

Community
sample (n =
1709)
(T1 = 0, T2 =
12 months, T3
= age 24
years)
18 16
[14–18]
at study
intake
33.3

White: 91.1
BD-I: 11.1
BD-II: 61.1
Cyclothymia: 27.8
PSY: 5.5
GAF: 76.3
Follow-up T3
-GAF:
75.6
11.8 ANX: 33.3
SUD: 22.2
ADHD: 11.1
OCD: 11.1
CD: 5.6
MDD: 43.3
SUD: 34.9 (alcohol),
27.9 (other)
Personality d/o: 11.5
(antisocial),
borderline (7.7)
BD: 3.9
K-SADS Past year: SI: 72.2, SA:
44.4 (≥ 2 SAs: 38.9)
T3 follow-up SA: 5.9
Merikangas et
al. 2012 (59)
CS

Community
sample (n =
10,123)
408 15.2
[13–18]
40.9

White: 52.4
BD-I and BD-II +
MDD: 60.3
BD-I mania only:
39.7
NR ANX: 64.5
SUD: 32.4
CD: 28.9
ADHD: 12.2
ED: 10.5
≥ 2 d/o: 49.0
Mania: 60.2
MDD: 41.9
Clinical interview Past: SA: BD-I and
BD-II + MDD: 21.9
BD-I mania only: 7.4
Weighted mean:13.7
Rucklidge
2006 (60)
CS

Outpatients
and healthy
controls (n =
39)
24 15.7
[13–17]
41.7

White: 87.5
BD-I: 37.5
BD-II: 25.0
BD-NOS: 37.5
GAF: 54.5
CBCL-parent: 71.5
YSR-youth: 61.9
TRF-teacher: 64.7
Post
puberty
ODD: 45.8
CD: 25.0
MDD: 25.0
ADHD: 20.8
SP: 20.8
PTSD: 16.7
SUD: 4.2
Trauma: 54.2
NR K-SADS Past: SI: 62.5
Current: SI: 29.2
Strober et al.
1995 (61)
LT

Inpatientsv
(follow-up: 5
years)
54 16
[13–17]
48.1

NR
Manic: 37.0
Depressed: 25.9
Mixed: 22.2
Cycling: 18.5
PSY: 27.7
NR ADHD: 14.8
ANX: 13.0
Dysthymia: 11.1
SUD: 9.3
CD: 5.6
NR Medical
attention needed
(no further details)
5-year follow-up: 20%
≥ 1 SA
Totals and
weighted
means across
14 studies
CS: (N = 8)
LT: (N = 4)
CS + LT: (N
= 2
Community
sample: (N =
5)
Outpatients:
(N = 6)
Inpatients: (N
= 3)Inpatients +
outpatients:
(N = 2)
1595 14.4
[3–18]
52.1

White: 70.5
BD-I: 54.6
BD-NOS: 22.3
BD-II: 17.1
Cyclothymia: 6.4
Mixed state: 62.1
PSY: 28.3
8.1 (N = 7) ANX: 66.0
DEP (in BP-
NOS): 46.9
ODD: 44.8
ADHD: 44.2
Personality d/o:
35.0
CD: 33.8
PSY (lifetime):
25.8
OCD: 24.0
SUD: 18.0
LD: 15.9
ED: 9.6
Tourette’s: 3.7

Trauma (N = 2):
54.2 (sexual:
29.2, physical:
20.8, sexual or
physical: 19.6,
emotional: 8.3,
neglect: 4.2)
MDD: 55.2
BD/mania: 44.9
SUD: 31.2
Personality d/o:
11.5 (antisocial),
borderline: 7.7
Schizophrenia: 1.1

Suicidality (N = 1):
SA: 29.7, SC: 4.7
K-SADS (N = 5)
Semi-structured
clinical
interview: (N =
4)
NR: (N = 3)
M-CIDI: (N = 1)
Medical
attention needed:
(N = 1)
SI: N = 10
SA: N = 11
Past:

SI (N = 7): 57.4
SA (N = 8): 21.3

Current:
SI (N = 4): 50.4
SA (N = 2): 25.5
Prospective:

SI (N = 1, 42
months): 14.6
SA (N = 4, mean: 42
months): 14.7

ADHD = attention-deficit hyperactivity disorder; ANX = anxiety disorder; BD = bipolar disorder; BD-I = bipolar I disorder; BD-II = bipolar II disorder; BD-NOS = bipolar disorder not otherwise specified; CBCL = Child Behavior Checklist; CBQ = Child Bipolar Questionnaire; CD = conduct disorder; C-GAS = Child Global Assessment Scale; CHR = chronic; COBY = Course and Outcome of Bipolar Illness in Youth; CS = cross-sectional study; DEP = depression; d/o = disorder; ED = eating disorder; EPI = episodic; K-SADS (P)=Kiddie-Schedule for Affective Disorders and Schizophrenia (Present Episode Version); LD = learning disorder; LT = longitudinal study; M-CIDI = Munich-Composite International Diagnostic Interview; MDD = major depressive disorder; MDE = major depressive episode; MRS = Mania Rating Scale (KSADS); MS = mixed state; NR = not reported; OAS #11 = Overt Aggression Scale, item #11 (self-harm); OCD = obsessive compulsive disorder; ODD = oppositional defiant disorder; PD = panic disorder; PTSD = posttraumatic stress disorder; PSY = psychosis; SA = suicide attempt; SB = suicidal behavior; SC = suicide completion; SD = standard deviation; SES = socioeconomic status, SI = suicidal ideation; SP = social phobia; SUD = substance use disorder; SXS = symptoms; TRF = Teacher Report Form; YSR = Youth Self-report.

a

Percentage based on the bipolar disorder (sub)group.

b

Goldstein et al. 2005 (7) (n = 405), prior sample.

c

Same sample.

d

Suicide measure: M-CIDI items for SI: (i) Has there ever been a period of two weeks or more where you thought a lot about death – either your own, someone else’s, or death in general?; (ii) Has there ever been a period of two weeks or more when you felt like you wanted to die?; (iii) Have you ever felt so low that you thought about committing suicide?; (iv) Have you ever made a plan as to how you might do it”. M-CIDI item for SA: Have you ever attempted suicide?.