Trial Outcomes & Findings for Utilizing Text Messaging to Improve Vehicle Safety Among At-Risk Young Adults (NCT NCT03833713)

NCT ID: NCT03833713

Last Updated: 2024-08-09

Results Overview

Participant count reporting always using a seat belt over past 2 weeks

• Recruitment status: COMPLETED
• Study phase: NA
• Target enrollment: 218 participants
• Primary outcome timeframe: Week 8
• Results posted on: 2024-08-09

Participant Flow

Participant milestones

Measure	SMS Intervention Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks
Overall Study STARTED	110	108
Overall Study COMPLETED	110	108
Overall Study NOT COMPLETED	0	0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Utilizing Text Messaging to Improve Vehicle Safety Among At-Risk Young Adults

Baseline characteristics by cohort

Measure	SMS Intervention n=110 Participants Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments n=108 Participants Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks	Total n=218 Participants Total of all reporting groups
Age, Continuous	21.5 years STANDARD_DEVIATION 2.2 • n=5 Participants	21.6 years STANDARD_DEVIATION 2.0 • n=7 Participants	21.5 years STANDARD_DEVIATION 2.1 • n=5 Participants
Sex: Female, Male Female	68 Participants n=5 Participants	71 Participants n=7 Participants	139 Participants n=5 Participants
Sex: Female, Male Male	42 Participants n=5 Participants	37 Participants n=7 Participants	79 Participants n=5 Participants
Race (NIH/OMB) American Indian or Alaska Native	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Race (NIH/OMB) Asian	7 Participants n=5 Participants	2 Participants n=7 Participants	9 Participants n=5 Participants
Race (NIH/OMB) Native Hawaiian or Other Pacific Islander	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Race (NIH/OMB) Black or African American	37 Participants n=5 Participants	35 Participants n=7 Participants	72 Participants n=5 Participants
Race (NIH/OMB) White	51 Participants n=5 Participants	60 Participants n=7 Participants	111 Participants n=5 Participants
Race (NIH/OMB) More than one race	5 Participants n=5 Participants	8 Participants n=7 Participants	13 Participants n=5 Participants
Race (NIH/OMB) Unknown or Not Reported	10 Participants n=5 Participants	3 Participants n=7 Participants	13 Participants n=5 Participants

PRIMARY outcome

Timeframe: Week 8

Population: 158 participants completed the 8-week follow-up and thus were included in outcome analyses.

Participant count reporting always using a seat belt over past 2 weeks

Outcome measures

Measure	SMS Intervention n=82 Participants Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments n=76 Participants Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks
Seat Belt Use	34 Participants	15 Participants

SECONDARY outcome

Timeframe: Baseline

Population: Reported less than always seat belt use in the past 2 weeks either as a driver or passenger and met other enrollment criteria

Percentage of ED patients who screen positive

Outcome measures

Measure	SMS Intervention n=702 Participants Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks
Feasibility of Recruitment	218 Participants	—

SECONDARY outcome

Timeframe: 2 weeks to 8 weeks

Percentage of ED patients enrolled in the Intervention arm who complete at least 50% of the SMS assessments during the intervention period

Outcome measures

Measure	SMS Intervention n=110 Participants Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments n=108 Participants Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks
Measure of Intervention Acceptability	56 Participants	59 Participants

SECONDARY outcome

Timeframe: Week 14

Population: 140 participants completed the 14-week follow-up and thus were included in outcome analyses.

Participant count reporting always using a seat belt over past 2 weeks

Outcome measures

Measure	SMS Intervention n=75 Participants Once-weekly automated SMS dialogue sessions or micro-interventions and use behavior change techniques including self-monitoring with performance feedback and goal support SMS Dialogue: Once-weekly SMS dialogue sessions or micro-interventions and use behavior change techniques (BCTs) including self-monitoring with performance feedback and goal support	SMS Assessments n=65 Participants Once-weekly SMS assessments related to their target risk behavior without receiving any feedback or goal support SMS Assessments: Once-weekly SMS assessments of motor vehicle risks
Seat Belt Use	32 Participants	20 Participants

Adverse Events

SMS Intervention

Serious events: 0 serious events

Other events: 0 other events

Deaths: 0 deaths

SMS Assessments

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

Brian Suffoletto

Stanford University

Phone: 4129016892

Email: suffbp@stanford.edu

Results disclosure agreements

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