Trial Outcomes & Findings for School Based Program to Prevent Teen Dating Violence (NCT NCT02909673)
NCT ID: NCT02909673
Last Updated: 2025-12-22
Results Overview
Determine whether Fourth R reduces students' TDV, as indexed by less perpetration of physical TDV, relative to students in control schools.
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
3028 participants
Primary outcome timeframe
1 year
Results posted on
2025-12-22
Participant Flow
Unit of analysis: Study Schools
Participant milestones
| Measure |
Intervention Group
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
The students who received the standard health class curriculum.
|
|---|---|---|
|
Overall Study
STARTED
|
1461 12
|
1567 12
|
|
Overall Study
COMPLETED
|
1237 12
|
1531 12
|
|
Overall Study
NOT COMPLETED
|
224 0
|
36 0
|
Reasons for withdrawal
| Measure |
Intervention Group
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
The students who received the standard health class curriculum.
|
|---|---|---|
|
Overall Study
Did not meet inclusion criteria
|
129
|
29
|
|
Overall Study
Surveys lost by scanner
|
95
|
2
|
|
Overall Study
Tracking info missing
|
0
|
5
|
Baseline Characteristics
School Based Program to Prevent Teen Dating Violence
Baseline characteristics by cohort
| Measure |
Intervention Group
n=12 Study School
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
n=12 Study School
The students who received the standard health class curriculum.
|
Total
n=24 Study School
Total of all reporting groups
|
|---|---|---|---|
|
Age, Customized
Categorical Age · 12 years or Under
|
558 Participants
n=18 Participants
|
573 Participants
n=102 Participants
|
1131 Participants
n=30 Participants
|
|
Age, Customized
Categorical Age · 13 years
|
599 Participants
n=18 Participants
|
799 Participants
n=102 Participants
|
1398 Participants
n=30 Participants
|
|
Age, Customized
Categorical Age · 14 years
|
73 Participants
n=18 Participants
|
147 Participants
n=102 Participants
|
220 Participants
n=30 Participants
|
|
Age, Customized
Categorical Age · 15 years
|
4 Participants
n=18 Participants
|
5 Participants
n=102 Participants
|
9 Participants
n=30 Participants
|
|
Age, Customized
Categorical Age · Unknown/non Response
|
3 Participants
n=18 Participants
|
7 Participants
n=102 Participants
|
10 Participants
n=30 Participants
|
|
Sex/Gender, Customized
Sex · Female
|
655 Participants
n=18 Participants
|
739 Participants
n=102 Participants
|
1394 Participants
n=30 Participants
|
|
Sex/Gender, Customized
Sex · Male
|
581 Participants
n=18 Participants
|
792 Participants
n=102 Participants
|
1373 Participants
n=30 Participants
|
|
Sex/Gender, Customized
Sex · Unknown/ Non Response
|
1 Participants
n=18 Participants
|
0 Participants
n=102 Participants
|
1 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Hispanic
|
402 Participants
n=18 Participants
|
623 Participants
n=102 Participants
|
1025 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Non-Hispanic White
|
65 Participants
n=18 Participants
|
135 Participants
n=102 Participants
|
200 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Non-Hispanic Black
|
342 Participants
n=18 Participants
|
367 Participants
n=102 Participants
|
709 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Asian
|
231 Participants
n=18 Participants
|
158 Participants
n=102 Participants
|
389 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · American Indian
|
14 Participants
n=18 Participants
|
15 Participants
n=102 Participants
|
29 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Multiple
|
58 Participants
n=18 Participants
|
71 Participants
n=102 Participants
|
129 Participants
n=30 Participants
|
|
Race/Ethnicity, Customized
Race/Ethnicity · Unknown/Other
|
125 Participants
n=18 Participants
|
162 Participants
n=102 Participants
|
287 Participants
n=30 Participants
|
|
Physical Dating Violence (DV) Perpetration
Physical DV Perpetration
|
109 Participants
n=18 Participants
|
163 Participants
n=102 Participants
|
272 Participants
n=30 Participants
|
|
Physical Dating Violence (DV) Perpetration
No Physical DV Perpetration
|
1093 Participants
n=18 Participants
|
1330 Participants
n=102 Participants
|
2423 Participants
n=30 Participants
|
|
Physical Dating Violence (DV) Perpetration
Non Response
|
35 Participants
n=18 Participants
|
38 Participants
n=102 Participants
|
73 Participants
n=30 Participants
|
|
Living Situation
Living with both parents
|
769 Participants
n=18 Participants
|
903 Participants
n=102 Participants
|
1672 Participants
n=30 Participants
|
|
Living Situation
1 parent and 1 stepparent
|
141 Participants
n=18 Participants
|
194 Participants
n=102 Participants
|
335 Participants
n=30 Participants
|
|
Living Situation
Mother only
|
220 Participants
n=18 Participants
|
304 Participants
n=102 Participants
|
524 Participants
n=30 Participants
|
|
Living Situation
Father only
|
16 Participants
n=18 Participants
|
30 Participants
n=102 Participants
|
46 Participants
n=30 Participants
|
|
Living Situation
Grandparent(s)
|
30 Participants
n=18 Participants
|
44 Participants
n=102 Participants
|
74 Participants
n=30 Participants
|
|
Living Situation
Other/unknown
|
61 Participants
n=18 Participants
|
56 Participants
n=102 Participants
|
117 Participants
n=30 Participants
|
|
Parent Education
Did not graduate from high school
|
87 Participants
n=18 Participants
|
158 Participants
n=102 Participants
|
245 Participants
n=30 Participants
|
|
Parent Education
Finished high school or GED
|
105 Participants
n=18 Participants
|
158 Participants
n=102 Participants
|
263 Participants
n=30 Participants
|
|
Parent Education
Some college or training
|
109 Participants
n=18 Participants
|
145 Participants
n=102 Participants
|
254 Participants
n=30 Participants
|
|
Parent Education
College graduate
|
574 Participants
n=18 Participants
|
632 Participants
n=102 Participants
|
1206 Participants
n=30 Participants
|
|
Parent Education
Unknown
|
362 Participants
n=18 Participants
|
438 Participants
n=102 Participants
|
800 Participants
n=30 Participants
|
|
Number of Sexually Experienced Participants
|
46 Participants
n=18 Participants
|
65 Participants
n=102 Participants
|
111 Participants
n=30 Participants
|
|
Total Student Enrollment in Study School, mean (SD)
|
1069 Students enrollment
STANDARD_DEVIATION 280 • n=12 Study School
|
1052 Students enrollment
STANDARD_DEVIATION 405 • n=12 Study School
|
1060.5 Students enrollment
STANDARD_DEVIATION 348.15 • n=24 Study School
|
|
Study School with >500 students
|
11 Study School
n=12 Study School
|
11 Study School
n=12 Study School
|
22 Study School
n=24 Study School
|
|
Seventh-grade student enrollment, mean (SD)
|
344 7th grade students
STANDARD_DEVIATION 122 • n=12 Study School
|
363 7th grade students
STANDARD_DEVIATION 148 • n=12 Study School
|
353.5 7th grade students
STANDARD_DEVIATION 135.62 • n=24 Study School
|
|
Number of schools with small (versus large) territory
|
6 number of study schools
n=12 Study School
|
7 number of study schools
n=12 Study School
|
13 number of study schools
n=24 Study School
|
|
Schools with >50% economically disadvantaged
|
8 number of study schools
n=12 Study School
|
7 number of study schools
n=12 Study School
|
15 number of study schools
n=24 Study School
|
PRIMARY outcome
Timeframe: 1 yearPopulation: Main study outcome was analyzed on the subset of students who reported having had a boyfriend or girlfriend in the last 12 months at the 1 year follow up
Determine whether Fourth R reduces students' TDV, as indexed by less perpetration of physical TDV, relative to students in control schools.
Outcome measures
| Measure |
Intervention Group
n=389 Participants
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
n=564 Participants
The students who received the standard health class curriculum.
|
|---|---|---|
|
Number of Participants With Perpetration of Physical Teen Dating Violence (TDV)
|
58 Participants
|
103 Participants
|
SECONDARY outcome
Timeframe: 1 yearProvides the number of participants reporting alcohol/marijuana use.
Outcome measures
| Measure |
Intervention Group
n=988 Participants
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
n=1233 Participants
The students who received the standard health class curriculum.
|
|---|---|---|
|
Number of Participants Reporting Alcohol/Marijuana Use
|
122 Participants
|
204 Participants
|
SECONDARY outcome
Timeframe: 1 yearProvides the number of participants reporting physical fights.
Outcome measures
| Measure |
Intervention Group
n=961 Participants
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
n=1215 Participants
The students who received the standard health class curriculum.
|
|---|---|---|
|
Number of Participants Reporting Physical Fights
|
227 Participants
|
283 Participants
|
SECONDARY outcome
Timeframe: 1 yearBully perpetration was measured on a scale from 1 to 5, where higher on the scale indicates increased perpetration.
Outcome measures
| Measure |
Intervention Group
n=122 Participants
The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development.
|
Control Group
n=204 Participants
The students who received the standard health class curriculum.
|
|---|---|---|
|
Bully Perpetration
|
1.23 score on a scale
Standard Deviation 0.46
|
1.21 score on a scale
Standard Deviation 0.45
|
Adverse Events
Intervention Group
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Control Group
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
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place