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Appendix Checklist of items for reporting trials of nonpharmacologic treatmentsa

From: Comparing Drug and Nondrug Technologies in Comparative Effectiveness Research

Section

Item

Standard CONSORT description

Extension for nonpharmacologic trials

Reported on page no.

Title and abstract b

1

How participants were allocated to interventions (e.g., “random allocation,” “randomized,” or “randomly assigned”)

In the abstract, description of the experimental treatment, comparator, care providers, centers, and blinding status

 

Introduction

Background

2

Scientific background and explanation of rationale

  

Methods

Participantsb

3

Eligibility criteria for participants and the settings and locations where the data were collected

When applicable, eligibility criteria for centers and those performing the interventions

 

Interventionsb

4

Precise details of the interventions intended for each group and how and when they were actually administered

Precise details of both the experimental treatment and comparator

 
 

4A

 

Description of the different components of the interventions and, when applicable, descriptions of the procedure for tailoring the interventions to individual participants

 
 

4B

 

Details of how the interventions were standardized

 
 

4C

 

Details of how adherence of care providers with the protocol was assessed or enhanced

 

Objectives

5

Specific objectives and hypotheses

  

Outcomes

6

Clearly defined primary and secondary outcome measures and, when applicable, any methods used to enhance the quality of measurements (e.g., multiple observations, training of assessors)

  

Sample sizeb

7

How sample size was determined and, when applicable, explanation of any interim analyses and stopping rules

When applicable, details of whether and how the clustering by care providers or centers was addressed

 

Randomization-sequence generationb

8

Method used to generate the random allocation sequence, including details of any restriction (e.g., blocking, stratification)

When applicable, how care providers were allocated to each trial group

 

Allocation concealment

9

Method used to implement the random allocation sequence (e.g., numbered containers or central telephone), clarifying whether the sequence was concealed until interventions were assigned

  

Implementation

10

Who generated the allocation sequence, who enrolled participants, and who assigned participants to their groups

  

Blinding (masking)b

11A

Whether or not participants, those administering the interventions, and those assessing the outcomes were blinded to group assignment

Whether or not those administering co-interventions were blinded to group assignment

 
 

11B

 

If blinded, method of blinding and description of the similarity of interventionsb

 

Statistical methodsb

12

Statistical methods used to compare groups for primary outcome(s); methods for additional analyses, such as subgroup analyses and adjusted analyses

When applicable, details of whether and how the clustering by care providers or centers was addressed

 

Results

Participant flowb

13

Flow of participants through each stage (a diagram is strongly recommended) – specifically, for each group, report the number of participants randomly assigned, receiving intended treatment, completing the study protocol, and analyzed for the primary outcome; describe deviations from study as planned, together with reasons

The number of care providers or centers performing the intervention in each group and the number of patients treated by each care provider or in each center

 

Implementation of interventionb

New item

 

Details of the experimental treatment and comparator as they were implemented

 

Recruitment

14

Dates defining the periods of recruitment and follow-up

  

Baseline datab

15

Baseline demographic and clinical characteristics of each group

When applicable, a description of care providers (case volume, qualification, expertise, etc.) and centers (volume) in each group

 

Numbers analyzed

16

Number of participants (denominator) in each group included in each analysis and whether analysis was by “intention-to-treat”; state the results in absolute numbers when feasible (e.g., 10/20, not 50 %)

  

Outcomes and estimation

17

For each primary and secondary outcome, a summary of results for each group and the estimated effect size and its precision (e.g., 95 % confidence interval)

  

Ancillary analyses

18

Address multiplicity by reporting any other analyses performed, including subgroup analyses and adjusted analyses, indicating those prespecified and those exploratory

  

Adverse events

19

All important adverse events or side effects in each intervention group

  

Discussion

Interpretationb

20

Interpretation of the results, taking into account study hypotheses, sources of potential bias or imprecision, and the dangers associated with multiplicity of analyses and outcomes

In addition, take into account the choice of the comparator, lack of or partial blinding, and unequal expertise of care providers or centers in each group

 

Generalizabilityb

21

Generalizability (external validity) of the trial findings

Generalizability (external validity) of the trial findings according to the intervention, comparators, patients, and care providers and centers involved in the trial

 

Overall evidence

22

General interpretation of the results in the context of current evidence

  
  1. aAdditions or modifications to the CONSORT checklist. CONSORT = Consolidated Standards of Reporting Trials
  2. bThis item was modified in the 2007 revised version of the CONSORT checklist