Dwamena[119] |
Accra, Ghana, 2012. Systematic sample of outpatients
at anticoagulation clinic of a teaching hospital. |
Own tool, adapted
from Taylor[121], pass rate set at 70% |
112/175 (64%) passed.
Better knowledge was associated with better INR control. |
Assefa[82] |
Addis Ababa, Ethiopia, 2014. Outpatients on warfarin at
teaching hospital. |
Own tool, adapted from Anticoagulation Knowledge
Assessment (AKA)[122], pass rate set at 75% |
18/130 (14%) passed.
Mean score was 59%. Association between knowledge and INR control not
reported. |
Mariita[10] |
Nairobi, Kenya, 2016. Consecutive sample at cardiac,
cardiothoracic, and hemato-oncology clinics of a teaching hospital. |
Own tool, adapted from Oral Anticoagulation Knowledge test
(OAK)[123], pass rate set at 75% |
15/147 (10%) passed. Mean score
was 57%. Knowledge was not associated with INR control. |
Iqbal[116] |
Nairobi, Kenya, 2017. Convenience sample at cardiac,
cardiothoracic, hemato-oncology, and DVT clinics of a teaching hospital. |
Own tool, adapted from OAK[123], “satisfactory knowledge” set at
>70% |
12/45 (27%) had satisfactory knowledge
pre-intervention. Association between knowledge and INR control not
reported. |
Hutheram[124] |
Gauteng, South Africa, 2016. Convenience sample at
ten private sector INR clinics attached to a private pathology company. |
Own tool, adapted from OAK[123], pass rate set at 50% |
31/34
(91%) passed. Association between knowledge and INR control not
reported. |
Samadoulougou[125] |
Ouagadougou, Burkina Faso, 2014. Convenience
sample of patients in the cardiology clinic of a university hospital. |
Own tool, adapted from Janoly-Duménil[126] |
Participants scored low
in questions relating to their ability to anticipate and make decisions
in risky situations. Association between knowledge and INR control not
reported. |
Maramba[32] |
Harare, Zimbabwe, 2018. Convenience sample of
outpatients with thrombophilia on long-term warfarin. |
Not clear |
29/47 (62%) were not aware of the need for regular check-ups.
Association between knowledge and INR control not
reported. |
Gregersen[120] |
Johannesburg, South Africa, 2006. Convenience
sample of women of childbearing age with valvular heart disease, who had
at least one pregnancy while on warfarin. |
Own questionnaire |
38/124
(31%) were not using contraception; misperceptions about “the
contraceptive effect of warfarin” were not uncommon. Knowledge about
effects of warfarin on the fetus was often inaccurate, and not specific
or detailed. Association between knowledge and INR control not
reported. |