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Table 1 Standard Protocol Items (SPIRIT): details on the scheduled activities related to patient enrollment, interventions, and study variables at different time points

From: Individualized mobile health interventions for cardiovascular event prevention in patients with coronary heart disease: study protocol for the iCARE randomized controlled trial

 

Study period

Enrollment

Allocation

Post allocation

Closeout

Time point

−T1

T0

T1

T2

T3

T4

T5

T6

Enrollment

Eligibility screen

X

       

Informed consent

X

       

Allocation

 

X

      

Interventions

 

X

X

X

X

X

X

X

Assessments

        

Major cardiovascular events

  

X

X

X

X

X

X

Health behaviors

Smoking status

 

X

X

X

X

X

X

X

Dietary intake

 

X

X

X

X

X

X

X

Physical activity

 

X

X

X

X

X

X

X

Medication adherence

 

X

X

X

X

X

X

X

Anthropometry parameters

Weight

 

X

X

X

X

X

X

X

Body mass index

 

X

X

X

X

X

X

X

Waist circumference

 

X

X

X

X

X

X

X

Biochemical parameters

Total cholesterol

 

X

 

X

X

X

X

X

Low-density lipoprotein cholesterol

 

X

 

X

X

X

X

X

High-density lipoprotein cholesterol

 

X

 

X

X

X

X

X

Fasting blood glucose

 

X

 

X

X

X

X

X

Hemoglobin A1c

 

X

 

X

X

X

X

X

Systolic blood pressure

 

X

 

X

X

X

X

X

Diastolic blood pressure

 

X

 

X

X

X

X

X

10-year Framingham risk scores of cardiovascular risks

 

X

 

X

X

X

X

X

All-cause mortality

  

X

X

X

X

X

X

All-cause readmission

  

X

X

X

X

X

X

Frequency of medical treatment due to CHD

  

X

X

X

X

X

X

Patients’ engagement in the intervention

  

X

X

X

X

X

X

Mediators and moderators of behavior changea

Risk perception

 

X

  

X

X

X

X

Outcome expectation

 

X

  

X

X

X

X

Action planning

 

X

  

X

X

X

X

Coping planning

 

X

  

X

X

X

X

Behavioral enjoyment

 

X

  

X

X

X

X

Social support

 

X

  

X

X

X

X

Self-efficacy

 

X

  

X

X

X

X

Effectiveness perception

 

X

  

X

X

X

X

Intention

 

X

  

X

X

X

X

Motivation

 

X

  

X

X

X

X

Volition

 

X

  

X

X

X

X

Stages of behavior changea

 

X

  

X

X

X

X

Knowledge of CHD

 

X

  

X

X

X

X

Perceived importance of health behaviors

 

X

  

X

X

X

X

  1. CHD, coronary heart disease. −T1: Start point for patient recruitment; T0: Baseline; T1: 1 month; T2: 3 months; T3: 6 months; T4: 12 months; T5: 24 months; T6: 36 months
  2. aThe stages of behavior change, mediators and moderators of behavior change will be assessed dynamically