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Table 2 Variables for data extraction

From: Weight gain, overweight and obesity in solid organ transplantation—a study protocol for a systematic literature review

 

Variables

General information

• First author, title, year, journal, country, setting, language

Design

• e.g. prospective or retrospective cohort, RCT, case-control, cross-sectional, mixed methods studies

• Time frame of data collection

Population

• Type of transplant

• Inclusion and exclusion criteria

• Sample size

• Age, gender, race

• Disease characteristics

• Time of follow-up in years

Definitions and measurements

• BMI categories

• Body composition

• Instruments and assessment tools

Statistics

• Specify univariate and multivariate analysis

Epidemiological data

• Prevalence of BMI categories

• Evolution of weight or BMI

Risk factors and correlates

• Treatment- and disease-related, biological, genetic, environmental, behavioral or psychological factors

• Time: pre- or post-transplant

Note in: numbers/frequencies, mean/standard deviation, median/interquartile range, odds ratio, risk ratio, effect size, p value, others

Patient outcomes

• Acute or late rejection

• Any postoperative, cardiovascular or pulmonary complications

• Mortality, time of survival

• Length of stay in hospital/intensive care unit

• Costs

• Quality of life

• Other outcomes as mentioned in the article

• Any comorbidities

Note in: numbers/frequencies, mean/standard deviation, median/interquartile range, odds ratio, risk ratio, effect size, p value, others

Remarks

• Strength, weakness

• Other information

  1. RCT randomized controlled trial, BMI body mass index.