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Table 1 Factors associated with aggressive behaviors in 216 first-episode BD-I patient-subjects: bivariable logistic regression

From: Aggression among 216 patients with a first-psychotic episode of bipolar I disorder

Factor

Overall, N (%) or mean (SD)

Aggressive behaviors, N (%) or mean (SD)

Statistica

p-value

Present

Absent

Subjects

216 (100.0)

23 (10.6)

193 (89.4)

Suicide attempt

30 (13.9)

7 (30.4)

23 (11.9)

4.81

0.03

Male

117 (54.2)

16 (69.6)

101 (52.3)

2.54

0.11

Onset age

31.2 (13.1)

35.0 (16.2)

30.8 (12.6)

1.95

0.16

Onset type

 Acute

131 (60.7)

13 (56.5)

118 (61.1)

0.18

0.67

 Subacute

72 (33.3)

8 (34.8)

64 (33.2)

0.02

0.88

 Gradual

13 (6.02)

2 (8.70)

11 (5.70)

0.29

0.59

Diagnosis at intake

5.81

0.02

 Manic

134 (62.0)

15 (65.2)

119 (61.7)

  

 Mixed

73 (33.8)

5 (21.7)

68 (35.2)

  

 Depressed

5 (2.31)

1 (4.35)

4 (2.07)

  

 Psychosis NOS

2 (0.93)

1 (4.35)

1 (0.52)

  

 Brief psychosis

1 (0.46)

0 (0.00)

1 (0.52)

  

 Schizophreniform

1 (0.46)

1 (4.35)

0 (0.00)

  

BPRS

 Total score

77.4 (23.0)

70.7 (21.2)

78.3 (23.2)

2.24

0.13

 Hostility score

2.46 (1.52)

2.95 (1.66)

2.40 (1.50)

2.38

0.12

Substance abuse

 Any

143 (66.2)

19 (82.6)

124 (64.3)

3.42

0.06

 Alcohol

133 (61.6)

19 (82.6)

114 (59.1)

5.33

0.02

 Drug

81 (37.5)

9 (39.1)

72 (37.3)

0.03

0.86

 Personality disorderb

20 (9.26)

2 (8.70)

18 (9.33)

0.01

0.92

 Learning disability

19 (8.80)

5 (21.7)

14 (7.25)

4.14

0.04

Follow-up

 Remission (days)

93.2 (139.5)

74.2 (77.6)

95.3 (144.7)

0.47

0.49

 Relapse (days)

513.3 (507.4)

542.3 (389.3)

510.3 (519.3)

0.04

0.85

 Functioning (years/n)

58 (27.6)

7 (12.1)

51 (87.9)

0.28

0.59

  1. Italic values indicate significance of p-value (p < 0.05)
  2. aResults from bivariable logistic regression analysis with reported likelihood-ratio and p-value
  3. bPersonality disorders included cluster A (n = 3; paranoid, schizoid or schizotypal), cluster B (n = 15; antisocial, borderline histrionic, or narcissistic), and cluster C (n = 2; avoidant, dependent, obsessive–compulsive or other specified). The n = 2 with aggressive behaviors were diagnosed with cluster B personality disorders