Trial Outcomes & Findings for Evaluation of the Safer Bars Prevention Program for Sexual Assault (NCT NCT04141839)

NCT ID: NCT04141839

Last Updated: 2025-04-27

Results Overview

Self-reported survey items measuring actual behavior (action taken) in response to observation of sexual aggression in the bar environment will be analyzed to identify significant differences post-intervention.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

681 participants

Primary outcome timeframe

at baseline and up to 6 months

Results posted on

2025-04-27

Participant Flow

Participant milestones

Participant milestones
Measure
Control Staff
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Intervention Staff
This arm with consist of bar staff randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 and 6 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Control Managers
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar managers are trained to recognize and change bar policies and environment to reduce sexual aggression and its precursors among patrons.
Intervention Managers
This arm will consist of bar managers randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar managers are trained to recognize and change bar policies and environment to reduce sexual aggression and its precursors among patrons.
Overall Study
STARTED
310
321
24
26
Overall Study
Post Training Assessment
0
259
0
24
Overall Study
3 Month Follow up Complete
242
257
14
21
Overall Study
6 Month Follow up
0
227
0
0
Overall Study
COMPLETED
242
278
14
21
Overall Study
NOT COMPLETED
68
43
10
5

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Evaluation of the Safer Bars Prevention Program for Sexual Assault

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control Staff
n=310 Participants
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Intervention Staff
n=321 Participants
This arm will consist of staff randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 and 6 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Control Managers
n=24 Participants
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar managers are trained to recognize and change bar policies and environment to reduce sexual aggression and its precursors among patrons.
Intervention Managers
n=26 Participants
This arm with consist of managers randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar managers are trained to recognize and change bar policies and environment to reduce sexual aggression and its precursors among patrons.
Total
n=681 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
310 Participants
n=5 Participants
321 Participants
n=7 Participants
24 Participants
n=5 Participants
26 Participants
n=4 Participants
681 Participants
n=21 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Sex/Gender, Customized
Sex/Gender · Male
154 Participants
n=5 Participants
179 Participants
n=7 Participants
17 Participants
n=5 Participants
13 Participants
n=4 Participants
363 Participants
n=21 Participants
Sex/Gender, Customized
Sex/Gender · Female
142 Participants
n=5 Participants
126 Participants
n=7 Participants
5 Participants
n=5 Participants
13 Participants
n=4 Participants
286 Participants
n=21 Participants
Sex/Gender, Customized
Sex/Gender · Not reported
14 Participants
n=5 Participants
16 Participants
n=7 Participants
2 Participants
n=5 Participants
0 Participants
n=4 Participants
32 Participants
n=21 Participants
Race/Ethnicity, Customized
White
160 Participants
n=5 Participants
144 Participants
n=7 Participants
15 Participants
n=5 Participants
16 Participants
n=4 Participants
335 Participants
n=21 Participants
Race/Ethnicity, Customized
Multiracial
18 Participants
n=5 Participants
17 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
35 Participants
n=21 Participants
Race/Ethnicity, Customized
Hispanic/Latino
98 Participants
n=5 Participants
106 Participants
n=7 Participants
6 Participants
n=5 Participants
8 Participants
n=4 Participants
218 Participants
n=21 Participants
Race/Ethnicity, Customized
Black/African-American
5 Participants
n=5 Participants
18 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
24 Participants
n=21 Participants
Race/Ethnicity, Customized
American Indian/Alaska Native
3 Participants
n=5 Participants
15 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
18 Participants
n=21 Participants
Race/Ethnicity, Customized
Middle Eastern/North African
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
Native Hawaiian/Pacific Islander
1 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
3 Participants
n=21 Participants
Race/Ethnicity, Customized
Asian
6 Participants
n=5 Participants
4 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
11 Participants
n=21 Participants
Race/Ethnicity, Customized
Not reported
19 Participants
n=5 Participants
15 Participants
n=7 Participants
3 Participants
n=5 Participants
0 Participants
n=4 Participants
37 Participants
n=21 Participants

PRIMARY outcome

Timeframe: at baseline and up to 6 months

Self-reported survey items measuring actual behavior (action taken) in response to observation of sexual aggression in the bar environment will be analyzed to identify significant differences post-intervention.

Outcome measures

Outcome measures
Measure
Control Staff
n=310 Participants
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Intervention Staff
n=321 Participants
This arm will consist of staff randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 and 6 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Number of Participants Who Reported Always Intervening Behavior at 6 Months
207 Participants
239 Participants

PRIMARY outcome

Timeframe: at baseline and up to 3 months

Self-reported survey items completed by bar owners/managers regarding promotions aimed at attracting female patrons

Outcome measures

Outcome measures
Measure
Control Staff
n=14 Participants
Delayed intervention: baseline and 3-month assessment prior to receiving the Safer Bars training. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Intervention Staff
n=21 Participants
This arm will consist of staff randomized to have the Safer Bars training on their premises attended by all their liquor serving staff with assessment directly before and after training (pre/post), and at 3 and 6 months post-training follow-up. Safer Bars: Safer Bars, a primary perpetration prevention program based on a bystander intervention model and the theory of planned behavior. Bar staff are trained to recognize and respond to sexual aggression and its precursors among patrons.
Did Not Offer Promotions Aimed at Attracting Female Patrons Post-intervention
13 Participants
15 Participants

Adverse Events

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Mary Koss

University of Arizona

Phone: 5204818610

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place