and Incontinence Care) had too few cases, violating
the normality assumption. So, these interventions were
excluded in subsequent analyses. These interventions
are examples of nursing interventions that were
needed by patients in the study to address their
comorbidities and would not be expected in routine
care of patients undergoing THR. In addition, there
were multicollinearity issues among some variables, so
11 nursing interventions were aggregated into one
intervention called Core Unit Care that included the
interventions: Care Plan, Vital Sign Check, Wound
Care, Bathing, Mobility Care, Fall Prevention, Nutritional
Care, Pain Management, Elimination Care,
Teaching/Emotional Support and Oral Medication.