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Table 3 Data and information extraction schedule

From: Effects of different kinds of anti-Alzheimer’s disease drugs on cognitive improvement: protocol for a systematic review and network meta-analysis of phase III clinical trials

Subject

Content

Publication information

First author and correspondence author, e-mail, publish year, country, corporate sponsorship, percentage of authors from sponsoring company

Participant

Recruitment source, sample size, age, gender, human race, diagnostic criteria, stage of AD, family history, inclusion and exclusion criteria

Intervention

Drug name, based hypothesis, administration, dosage and usage, frequency of the treatment and the treatment course

Control

Placebo, administration, dosage and usage, frequency of the treatment and the treatment course

Outcome

Outcome measurements and each assessment time point, cognitive or biomarker endpoints, adverse events, and the detailed data

Study design

Study duration, treatment and follow-up course, study sites, the application of randomization and blinding, description about statistical analysis, sample size calculation

Other information

Attendance rate, reasons for withdrawing, combined treatment of AD