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Table 6 Odds ratios for the occurrence of severe aggressive incidents (n = 2017)

From: Frequency and severity of aggressive incidents in acute psychiatric wards in Switzerland

  

n

Patients with severe aggressive incident (SOAS-R-Score >8)

Crude odds ratio#

 
 

Factor

  

OR (95%-CI)

p*

Gender

female

940

8.5%

(ref)

 
 

male

1077

10.2%

1.21 (0.92–1.60)

0.18

Age1

≤ 29 yrs.

537

10.2%

1.04 (0.75–1.43)

0.82

 

30–48 yrs.

986

10.2%

(ref)

 
 

≥ 49 yrs.

493

6.9%

0.67 (0.46–0.99)

0.04

Admission2

voluntary

1165

6.6%

(ref)

 
 

involuntary

746

13.3%

2.16 (1.63–2.90)

<0.001

LOS

≤ 5 days

703

3.7%

0.46 (0.29–0.73)

0.002

 

6–16 days

674

7.7%

(ref)

 
 

≥ 17 days

640

17.5%

2.72 (1.96–3.77)

<0.001

Diagnosis (ICD-10)†3

F1

503

5.6%

0.50 (0.33–0.76)

0.001

 

F2

590

13.9%

2.10 (1.54–2.88)

<0.001

 

F3

336

6.8%

0.68 (0.43–1.08)

0.101

 

F4/6

358

5.9%

0.56 (0.35–0.90)

0.017

 

Others

136

16.9%

2.16 (1.34–3.48)

0.002

  1. # calculated separately for each variable *wald statistic
  2. † calculated separately for each diagnostic category compared to all other diagnostic groups
  3. 1 1 missing 2 106 missing 3 94 missing