Table 1 Availability of information on the methods used in recording ADRs, categorized according to type of ADRs reported by the trial.
From: Reporting of adverse drug reactions in randomised controlled trials – a systematic survey
Types of ADRs | No. of trials reporting | Specific details given on how rate of reported ADRs were recorded | Did not specify methods used in determining the rate of reported ADRs |
|---|---|---|---|
Detected by | 68 | 37 (55%) | 31 (45%) |
investigative tests | |||
Clinical events | 95 | 14 (15%) | 81 (85%) |
Patient symptoms | 104 | 18 (17%) | 86 (83%) |