Study
Ruijne and colleagues (2021) conducted a cluster randomized controlled trial to assess the effectiveness of the Better Reduction and Assessment of Violence (BRAVE) intervention on community mental health teams’ detection and referral of domestic violence and abuse in serious mentally ill patients at the 12-month follow-up. The study took place in two urban areas of the Netherlands, from February 2016 to February 2017 for all Rotterdam teams and February 2017 to February 2018 for all The Hague teams.
Community mental health teams that provided outpatient care to serious mentally ill patients 18 years or older, with at least 20 percent of employees working in more than one team and who had a functioning electronic patient file with at least 12 months of historic data, were eligible for participation. Twenty-four community mental health teams were randomly assigned to receive the BRAVE intervention or to the control condition, with an allocation ratio of 1:1. Randomization was performed with block sizes of two, using a web-based computer-generated scheme. The socioeconomic status of the service region of each of the 24 community mental health teams (dichotomized into high versus low socioeconomic status) was used as a stratification factor.
Community mental health teams in the control condition (
n
= 12) provided care as usual, which consisted of outpatient care to patients with a severe mental illness. BRAVE intervention teams (
n
= 12) received the intervention as described in the Program Description. The mean age of community mental health professionals in the BRAVE intervention was 43.5 years, compared with 42.5 years in the control condition. Community mental health professionals in the 12 BRAVE intervention teams (
n
= 115) were 41 percent male, and the majority were either general nurses (40 percent), psychiatric nurses (21 percent), or social workers (15 percent). Community mental health professionals in the 12 control condition teams (
n
= 99) were 38 percent male, and the majority were either general nurses (38 percent), social workers (15 percent), or another discipline (14 percent). The study authors did not indicate whether there were any statistically significant differences between the intervention and control conditions at baseline.
An automatic search query was performed on electronic files of patients treated by each team during the 12-month period before the intervention, and at 6 and 12 months after the start of the intervention. Files flagged as potential cases of domestic violence and abuse were additionally vetted and categorized as either a detected current case of domestic violence and abuse or no domestic violence and abuse. Detected cases were then categorized as perpetrator or victim and type of violence (sexual, physical, material, or emotional). Violence was stratified to physical violence if it was described in the electronic patient file as a patient being, for example, slapped, hit, or otherwise physically assaulted. Violence was marked as sexual if a patient was, for example, raped or otherwise sexually assaulted. Violence was marked as emotional if the electronic patient file described a patient being threatened or stalked. Violence was marked as material if a patient was described to have been a victim of vandalism or financially exploited. Cases were also examined if they were referred to a domestic violence and abuse professional, externally discussed (discussed with a domestic violence and abuse service provider whether referral was necessary), internally discussed (discussed in a multidisciplinary setting whether referral was necessary), or no follow-up action was taken. Thus, detected cases were the sum of all cases in the patient files, and the number of domestic violence and abuse referrals was the sum of all follow-up actions.
The effect of the BRAVE intervention on the outcomes of interest (the rate of domestic violence and abuse cases detected and referred per team) at the 12-month follow-up, compared with the control condition, was estimated using a generalized linear mixed model with logit link and binomial distribution. The model included intercept, allocation (BRAVE intervention, compared with the control condition), time (as a continuous variable), and the interaction term of allocation with time. The number of patients detected or referred during the intervention period was used as the numerator, and the number of patients treated during this period was used as the denominator. Cases were stratified according to the type of violence (physical, sexual, emotional, and material), and whether the cases concerned victimization, perpetration, or both. Since the use of a structured domestic violence and abuse form in the electronic patient file was recommended during the BRAVE training, the rate of completed forms was assessed. Analyses were repeated, excluding cases of violence occurring among roommates (i.e., sheltered housing), and adjusted for standardized baseline rate. Subgroup analyses were conducted by type of domestic violence and abuse victimization.