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. 2010 Oct;100(10):1938–1945. doi: 10.2105/AJPH.2009.185421

TABLE 2.

Weighted Percentages of Nursing Assistants Reporting Injuries From Assaults and Human Bites in the Past 12 Months: National Nursing Assistant Survey, 2004

Characteristics of Nursing Home Facilities Weighted Percentage of Total Incidence of Assault Injuries, % (95% CI) Incidence of Human Bites, % (95% CI)
Alzheimer disease wards*
    Yes 39.1 37.4 (33.3, 41.4) 13.3 (10.8, 15.9)
    No 60.9 32.8 (28.6, 37.0) 10.3 (8.9, 11.6)
Hospice wards
    Yes 5.7 38.2 (28.2, 48.3) 9.1 (2.5, 15.7)
    No 94.3 34.4 (33.2, 35.5) 11.6 (10.9, 12.3)
Rehabilitation wards
    Yes 12.5 36.1 (24.8, 47.3) 10.5 (6.9, 14.2)
    No 87.5 34.4 (33.4, 35.3) 11.6 (10.9, 12.4)
Ownership
    For profit 58.6 35.4 (34.5, 36.4) 10.7 (9.2, 12.1)
    Not for profit 41.4 33.3 (30.4, 36.3) 12.6 (10.8, 14.4)
Waiting list
    Yes 38.2 35.3 (33.1, 37.5) 12.0 (10.4, 13.6)
    No 61.8 34.1 (32.0, 36.2) 11.1 (10.4, 11.9)
Any lifting device*
    Yes 35.1 35.2 (32.9, 37.6) 13.5 (11.8, 15.1)
    No 64.9 34.2 (32.6, 35.8) 10.4 (9.5, 11.3)
Assigns NAs to same residents
    Yes 70.9 34.5 (33.1, 36.0) 11.9 (11.0, 12.8)
    No 29.1 34.6 (32.1, 37.2) 10.5 (9.0, 12.0)
Facility size
    ≥ 100 beds 67.1 34.3 (32.5, 36.1) 11.6 (10.7, 12.5)
    <100 beds 32.9 35.1 (33.4, 36.7) 11.2 (9.9, 12.4)
Total 100.0 34.6 (32.8, 36.4) 11.5 (10.1, 12.9)

Note. CI = confidence interval; NA = nursing assistant. The sample size was n = 2888.

*P < .05, by the χ2 test comparing proportions of human bite.