Table 5 Suggested information to report in an individual patient data indirect comparison to supplement ISPOR, PRISMA-IPD and PRISMA-NMA
From: A scoping review of indirect comparison methods and applications using individual patient data
• Rationale for the IPD indirect comparison method selected. • Timelines to obtain, clean, and analyze data. • Process to identify IPD studies, and if authors were contacted, which methods were used to contact them, how many reminders were sent, and who requested the IPD. • Whether the obtained IPD were anonymized. • Mechanism and strategy for storage of IPD. • Whether IPD were requested from all studies or just a subset of studies; report reasons for all missing IPD studies. • Potential legal agreements to access IPD and difficulties encountered due to data protection and intellectual property issues. • Estimator or prior for the between-study variance and rationale for this selection, when a random-effects model is applied. • Software in which the indirect comparison was performed and the statistical code used. |  |