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. Author manuscript; available in PMC: 2016 Aug 31.
Published in final edited form as: Am J Ind Med. 2014 Sep 15;57(11):1276–1284. doi: 10.1002/ajim.22371

TABLE II.

Categorization of Hospital Units According to Workplace Violence Probability, Severity, and Unit Type (n = 42 Worksites Identified by the Hazard Risk Matrix)

Probabilitya
Severityb
Low
Medium
High
Low
Medium
High
Nr. of Units N (%) N (%) N (%) N (%) N (%) N (%)
Acute care nursing 15 7 (46.7) 8 (53.3) 2 (13.3) 6 (40.0) 7 (46.7)
Intensive care nursing 8 4 (50.0) 4 (50.0) 3 (37.5) 5 (62.5)
Emergency Dept. 5 1 (20.0)c 2 (40.0) 2 (40.0) 2 (40.0) 3 (60.0)
Psychiatry 4 4 (100.0) 4 (100.0)
Security 4 1 (25.0) 3 (75.0) 4 (100.0)
Surgery 6 1 (16.7) 5 (83.3) 3 (50.0) 2 (33.3) 1 (16.7)
Total 42 1 (2.4) 15 (35.7) 26 (61.9) 8 (19.0) 15 (35.7) 19 (45.3)
a

Based on distribution of incidence rates.

b

Based on distribution of lost time management rates.

c

This emergency department was judged by hospital stakeholders to have a higher probability of violence and was added as the 42nd unit to the study.