Research Article

Awareness, Actions, and Predictors of Actions on Adverse Drug Reaction Reporting among Patients Attending a Referral Hospital in Southern Highland Tanzania

Table 2

Showing participants’ awareness of ADR, serious ADR, and ADR reporting.

QuestionsResponse n (%)

Ever heard of pharmacovigilance? (n=787)
Yes507 (64.4)
No280 (35.6)

Ever heard of ADR reporting form? (777)
Yes83 (10.7)
No694 (89.3)

Ever encounter ADR? (792)
Yes171 (21.6)
No621 (78.4)

Meaning of adverse drug events (n=790)
Any harm related to the use of a drug (adverse event)298 (37.7)
Expected harm after using a drug (side-effect)190 (24.1)
Unexpected harm after using a drug (adverse drug reaction)111 (14.1)
I don’t know191 (24.2)

Meaning of serious adverse drug reaction (n=807)
A reaction that may lead to hospitalization118 (14.6)
A reaction that is life-threatening161 (20.0)
A reaction that requires another drug treatment416 (52.7)
A reaction that resolves on its own112 (13.9)

What action did you or will you take after encountering ADR1
Inform a healthcare professional597 (70.3)
Stop the drugs123 (14.5)
Nothing because the reaction was tolerable28 (3.3)
Nothing because the reaction resolved on its own17 (2.0)
Use another drug to treat symptoms of the reaction47 (5.0)
Switch to herbal/traditional medicines2 (0.2)
Switch to another drug40 (4.7)

Preferred methods of ADR reporting1
Reporting directly to healthcare professional706 (88.9)
A phone call or text message57 (7.2)
Online application designed for adverse drug reaction reporting10 (1.3)
Filling out a reporting form21 (2.6)

Why patients do not report encountering ADRs1
Do not know the importance of reporting adverse drug reactions558 (69.1)
The adverse reaction may not be very serious43 (5.3)
Do not know how to report such reactions131 (16.2)
Not sure if an adverse reaction is related to the medications used67 (8.3)
Adverse effects/reactions resolved on their own9 (1.1)

1One individual may answer more than one response. Missing information.