Trial Outcomes & Findings for Use of Behavioral Economics to Improve Treatment of Acute Respiratory Infections (Main Study) (NCT NCT01454947)

NCT ID: NCT01454947

Last Updated: 2024-05-23

Results Overview

Assess inappropriate antibiotic prescribing rates (relative to all practices that did not receive the intervention) for antibiotic-inappropriate acute respiratory tract infection visits and no concomitant reason for antibiotic prescribing. based on the following non-antibiotic-appropriate International Statistical Classification of Diseases, version 9 (ICD-9) diagnoses: 460 Acute nasopharyngitis (common cold) 465 Acute laryngopharyngitis/acute upper respiratory infection 466 Acute bronchitis 490 Bronchitis not specified as acute or chronic 487 Flu

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

248 participants

Primary outcome timeframe

18 months

Results posted on

2024-05-23

Participant Flow

Participant milestones

Participant milestones
Measure
Education Control
Participants do not receive any of the 3 interventions.
Suggested Alternatives (SA)
Participants receive the Suggested Alternatives intervention, but not the Accountable Justification or Peer Comparison interventions.
Accountable Justification (AJ)
Participants receive the Accountable Justification intervention, but do not receive the Suggested Alternatives or Peer Comparison interventions.
Peer Comparison (PC)
Participants receive the Peer Comparison intervention, but do not receive the Suggested Alternatives or Accountable Justification interventions.
SA, AJ
Participants receive the Suggested Alternatives and Accountable Justification interventions, but not the Peer Comparison intervention.
SA, PC
Participants receive the Suggested Alternative and Peer Comparison interventions, but not the Accountable Justification intervention.
AJ, PC
Participants receive the Accountable Justification and Peer Comparison interventions, but not the Suggested Alternative intervention.
SA, AJ, PC
Participants are given all 3 interventions.
Overall Study
STARTED
27
42
35
20
34
35
27
28
Overall Study
COMPLETED
24
38
32
19
33
32
26
23
Overall Study
NOT COMPLETED
3
4
3
1
1
3
1
5

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Use of Behavioral Economics to Improve Treatment of Acute Respiratory Infections (Main Study)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Education Control
n=27 Participants
Participants do not receive any of the 3 interventions.
Suggested Alternatives (SA)
n=42 Participants
Participants receive the Suggested Alternatives intervention, but not the Accountable Justification or Peer Comparison interventions.
Accountable Justification (AJ)
n=35 Participants
Participants receive the Accountable Justification intervention, but do not receive the Suggested Alternatives or Peer Comparison interventions.
Peer Comparison (PC)
n=20 Participants
Participants receive the Peer Comparison intervention, but do not receive the Suggested Alternatives or Accountable Justification interventions.
SA, AJ
n=34 Participants
Participants receive the Suggested Alternatives and Accountable Justification interventions, but not the Peer Comparison intervention.
SA, PC
n=35 Participants
Participants receive the Suggested Alternative and Peer Comparison interventions, but not the Accountable Justification intervention.
AJ, PC
n=27 Participants
Participants receive the Accountable Justification and Peer Comparison interventions, but not the Suggested Alternative intervention.
SA, AJ, PC
n=28 Participants
Participants are given all 3 interventions.
Total
n=248 Participants
Total of all reporting groups
Age, Continuous
47 years
STANDARD_DEVIATION 12 • n=5 Participants
49 years
STANDARD_DEVIATION 10 • n=7 Participants
49 years
STANDARD_DEVIATION 9 • n=5 Participants
46 years
STANDARD_DEVIATION 9 • n=4 Participants
48 years
STANDARD_DEVIATION 9 • n=21 Participants
51 years
STANDARD_DEVIATION 11 • n=8 Participants
48 years
STANDARD_DEVIATION 10 • n=8 Participants
46 years
STANDARD_DEVIATION 9 • n=24 Participants
48 years
STANDARD_DEVIATION 10 • n=42 Participants
Sex: Female, Male
Female
13 Participants
n=5 Participants
30 Participants
n=7 Participants
22 Participants
n=5 Participants
12 Participants
n=4 Participants
24 Participants
n=21 Participants
25 Participants
n=8 Participants
15 Participants
n=8 Participants
16 Participants
n=24 Participants
157 Participants
n=42 Participants
Sex: Female, Male
Male
14 Participants
n=5 Participants
12 Participants
n=7 Participants
13 Participants
n=5 Participants
8 Participants
n=4 Participants
10 Participants
n=21 Participants
10 Participants
n=8 Participants
12 Participants
n=8 Participants
12 Participants
n=24 Participants
91 Participants
n=42 Participants

PRIMARY outcome

Timeframe: 18 months

Population: We identified a total of 16,959 non-antibiotic-appropriate acute respiratory infection (ARI) visits. Visits were categorized as inappropriate if there were diagnosis codes for non-specific upper respiratory infections, acute bronchitis, and/or influenza.

Assess inappropriate antibiotic prescribing rates (relative to all practices that did not receive the intervention) for antibiotic-inappropriate acute respiratory tract infection visits and no concomitant reason for antibiotic prescribing. based on the following non-antibiotic-appropriate International Statistical Classification of Diseases, version 9 (ICD-9) diagnoses: 460 Acute nasopharyngitis (common cold) 465 Acute laryngopharyngitis/acute upper respiratory infection 466 Acute bronchitis 490 Bronchitis not specified as acute or chronic 487 Flu

Outcome measures

Outcome measures
Measure
Control
n=2095 Qualifying ARI visits
Participants received no study interventions
Suggested Alternatives (SA)
n=2388 Qualifying ARI visits
Participants receive the Suggested Alternatives intervention, but not the Accountable Justification or Peer Comparison interventions.
Accountable Justification (AJ)
n=1979 Qualifying ARI visits
Participants receive the Accountable Justification intervention, but do not receive the Suggested Alternatives or Peer Comparison interventions.
Peer Comparison (PC)
n=1620 Qualifying ARI visits
Participants receive the Peer Comparison intervention, but do not receive the Suggested Alternatives or Accountable Justification interventions.
Suggested Alternatives + Accountable Justification
n=2131 Qualifying ARI visits
Participants receive the Suggested Alternatives and Accountable Justification interventions, but do not receive the Peer Comparison intervention
Suggested Alternatives + Peer Comparison
n=2014 Qualifying ARI visits
Participants receive the Suggested Alternatives and Peer Comparison interventions, but do not receive the Accountable Justification intervention
Accountable Justification + Peer Comparison
n=2240 Qualifying ARI visits
Participants receive the Accountable Justification and Peer Comparison interventions, but do not receive the Suggested Alternatives intervention
SA+AJ+PC
n=2492 Qualifying ARI visits
Participants receive all three interventions: Suggested Alternatives, Accountable Justification, and Peer Comparison interventions
Inappropriate Antibiotic Prescribing Rate for Qualifying Acute Respiratory Infection Diagnoses
0.20 proportion of visits
Interval 0.1 to 0.31
0.19 proportion of visits
Interval 0.06 to 0.66
0.08 proportion of visits
Interval 0.03 to 0.23
0.09 proportion of visits
Interval 0.03 to 0.31
0.07 proportion of visits
Interval 0.02 to 0.24
0.01 proportion of visits
Interval 0.0 to 0.08
0.03 proportion of visits
Interval 0.0 to 0.18
0.03 proportion of visits
Interval 0.0 to 0.22

SECONDARY outcome

Timeframe: 18 months

Population: Overall number of units analyzed is the number of intervention-qualifying acute respiratory infections (ARI) encounters where no antibiotic was prescribed. Intervention-qualifying ARI encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome).

Within intervention-qualifying acute respiratory infections (ARI) encounters where no antibiotic was prescribed, we will monitor return visit rates for the specified diagnoses and other acute respiratory infection diagnoses (ICD-9), including whooping cough (033.9), rheumatic fever (390-392) and pneumonia (481-487).

Outcome measures

Outcome measures
Measure
Control
n=3245 Qualifying encounters
Participants received no study interventions
Suggested Alternatives (SA)
n=4579 Qualifying encounters
Participants receive the Suggested Alternatives intervention, but not the Accountable Justification or Peer Comparison interventions.
Accountable Justification (AJ)
n=4622 Qualifying encounters
Participants receive the Accountable Justification intervention, but do not receive the Suggested Alternatives or Peer Comparison interventions.
Peer Comparison (PC)
n=3781 Qualifying encounters
Participants receive the Peer Comparison intervention, but do not receive the Suggested Alternatives or Accountable Justification interventions.
Suggested Alternatives + Accountable Justification
n=5717 Qualifying encounters
Participants receive the Suggested Alternatives and Accountable Justification interventions, but do not receive the Peer Comparison intervention
Suggested Alternatives + Peer Comparison
n=5993 Qualifying encounters
Participants receive the Suggested Alternatives and Peer Comparison interventions, but do not receive the Accountable Justification intervention
Accountable Justification + Peer Comparison
n=3398 Qualifying encounters
Participants receive the Accountable Justification and Peer Comparison interventions, but do not receive the Suggested Alternatives intervention
SA+AJ+PC
n=4164 Qualifying encounters
Participants receive all three interventions: Suggested Alternatives, Accountable Justification, and Peer Comparison interventions
Encounters Closely Following the Index Encounter for Serious Diagnoses
14 Qualifying encounters
16 Qualifying encounters
16 Qualifying encounters
13 Qualifying encounters
22 Qualifying encounters
23 Qualifying encounters
48 Qualifying encounters
15 Qualifying encounters

Adverse Events

Education Control

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

Suggested Alternatives (SA)

Serious events: 0 serious events
Other events: 16 other events
Deaths: 0 deaths

Accountable Justification (AJ)

Serious events: 0 serious events
Other events: 16 other events
Deaths: 0 deaths

Peer Comparison (PC)

Serious events: 0 serious events
Other events: 13 other events
Deaths: 0 deaths

SA, AJ

Serious events: 0 serious events
Other events: 22 other events
Deaths: 0 deaths

SA, PC

Serious events: 0 serious events
Other events: 23 other events
Deaths: 0 deaths

AJ, PC

Serious events: 0 serious events
Other events: 48 other events
Deaths: 0 deaths

SA, AJ, PC

Serious events: 0 serious events
Other events: 15 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Education Control
n=3245 participants at risk
Participants do not receive any of the 3 interventions.
Suggested Alternatives (SA)
n=4579 participants at risk
Participants receive the Suggested Alternatives intervention, but not the Accountable Justification or Peer Comparison interventions.
Accountable Justification (AJ)
n=4622 participants at risk
Participants receive the Accountable Justification intervention, but do not receive the Suggested Alternatives or Peer Comparison interventions.
Peer Comparison (PC)
n=3781 participants at risk
Participants receive the Peer Comparison intervention, but do not receive the Suggested Alternatives or Accountable Justification interventions.
SA, AJ
n=5717 participants at risk
Participants receive the Suggested Alternatives and Accountable Justification interventions, but not the Peer Comparison intervention.
SA, PC
n=5993 participants at risk
Participants receive the Suggested Alternative and Peer Comparison interventions, but not the Accountable Justification intervention.
AJ, PC
n=3398 participants at risk
Participants receive the Accountable Justification and Peer Comparison interventions, but not the Suggested Alternative intervention.
SA, AJ, PC
n=4164 participants at risk
Participants are given all 3 interventions.
Infections and infestations
return visits for bacterial infections occurring within 30 days of study qualifying ARI visit where
0.43%
14/3245 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.35%
16/4579 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.35%
16/4622 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.34%
13/3781 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.38%
22/5717 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.38%
23/5993 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
1.4%
48/3398 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.
0.36%
15/4164 • For antibiotic-inappropriate visits in which no antibiotic was prescribed, we assessed return visits within 30 days for the presence of complications potentially attributable to untreated bacterial infections
Intervention-qualifying acute respiratory infections (ARI) encounters include all ARI visits eligible for the suggested alternatives and accountable justification interventions (not limited to the antibiotic-inappropriate ARI diagnoses that define the primary outcome). A Diagnosis of Concern (DoC) was based on International Classification of Diseases version 9 (ICD9) codes of concern at revisit.

Additional Information

Jason N. Doctor

University of Southern California

Phone: 213.821.8142

Results disclosure agreements

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