Study, publication year Setting Sample characteristics Sample size Mean or median TTR Mean or median PTR
Makubi,[6] 2008 Dar es Salaam, Tanzania. National referral hospital. Patients with mechanical heart valves attending the ACC. 189 36%
Manji,[7] 2011 Eldoret, Kenya. Teaching hospital. Adults attending ACC. 178 65%
Menanga,[8] 2015 Yaoundé, Cameroon. A general and a central hospital. Adult inpatients and outpatients with AF on VKA. 27 48%
Daba,[9] 2016 Addis Ababa, Ethiopia. Teaching hospital. Adults with VTE on anticoagulation. 91 34%
Mariita,[10] 2016 Nairobi, Kenya. Teaching hospital. Adults attending cardiac, cardiothoracic, or hemato-oncology clinic for anticoagulation monitoring. 147 44%
Sadhabiriss,[11] 2016 Durban, South Africa. District-level hospital. Patients with non-valvular AF or prosthetic heart valves attending outpatient department on warfarin for >= 12 months. 177 30%
Sonuga,[12] 2016 Cape Town, South Africa. District hospital. Adults attending ACC and on warfarin for >= 30 days. 136 49%
Ahmed,[13] 2017 Khartoum, Sudan. Specialist hospital. Adults attending ACC and on warfarin for >= 1 year. 135 52%
Fenta,[14] 2017 Addis Ababa, Ethiopia. Teaching hospital. Adults attending cardiology or hematology outpatient clinics on warfarin for >= 3 months. 360 29%
Nyamu,[15] 2017 Nairobi, Kenya. Teaching hospital. Adults attending cardiac, cardiothoracic, or hemato-oncology clinics on warfarin. 102 28%
Coulibaly,[16] 2018 Abidjan, Côte d’Ivoire. Specialist hospital. Adults with non-valvular AF on VKA for >= 6 months and with >= 6 INR measurements. 100 44%
Ebrahim,[17] 2018 Cape Town, South Africa. A specialist hospital and a community health centre. Patients attending two ACCs and on warfarin for >= 27 months with regular INR monitoring. 363 47%
Mwita,[18] 2018 Gaborone, Botswana. Tertiary hospital. Patients attending medical outpatient clinics on warfarin for >= 1 month with >= 4 INR measurements. 410 31%
Jonkman,[19] 2019 Windhoek, Namibia. Central hospital. Patients attending ACC with >= 3 INR values. 215 29% 25%
Karuri,[20] 2019 Nairobi, Kenya. Teaching hospital. Patients attending cardiac, cardiothoracic, or hemato-oncology clinics on warfarin for >= 1 month with >= 2 INR measurements. 406 31%
Botsile,[21] 2020 Gaborone, Botswana. Tertiary hospital. Adults with mechanical heart valves attending ACC on warfarin for >= 1 month with >= 3 INR measurements. 142 30%
Semakula,[22] 2020 Kampala, Uganda & Cape Town, South Africa. A primary level health centre and four secondary and tertiary level hospitals. Patients attending five ACCs. 229 41%