Table 1.
Decisions made about questions within the Naranjo tool.
Figure 1.
Flowchart of the development of the Liverpool ADR Causality Assessment Tool.
Figure 2.
Liverpool ADR causality assessment tool.
Table 2.
Causality category assignments of investigators.
Table 3.
Naranjo and Liverpool tool assessment of 40 original ADR cases from an observational study.
Table 4.
Liverpool ADR Causality tool assessment of 37 randomly selected published ADR case reports.
Table 5.
Naranjo and Liverpool tool assessment of 40 new ADR cases from an observational study.