Medication adherence, self-care behaviour and knowledge on heart failure in urban South Africa: the Heart of Soweto study

Cardiovasc J Afr. 2010 Mar-Apr;21(2):86-92.

Abstract

Background: There is a paucity of data on treatment adherence in patients with chronic heart failure (CHF) in Africa.

Methods: We examined the pattern of treatment adherence, self-care behaviour and treatment knowledge in 200 consecutive patients with CHF attending the Chris Hani Baragwanath Hospital, Soweto, South Africa via a combination of questionnaire (100%, n = 200) and pill count (41%, n = 82).

Results: Mean age was 56 +/- 14 years, 157 were black African (79%) and 109 (55%) were male. CHF-specific treatment included loop diuretics (93%), beta-blockers (84%), ACE inhibitors (74%), spironolactone (64%) and cardiac glycosides (24%); mean number of medications was 6 +/- 2. Overall, 71% (58 of 82) adhered to their prescribed CHF regimen and individual medication adherence ranged from 64 to 79%. Behavioural adherence varied from 2.5 to 98%. Patient treatment knowledge was poor; 56% could not name medication effects or side effects. However, an average knowledge score of 69% was achieved on 10 questions concerning CHF management.

Conclusion: As in other regions of the world, non-adherence to complex CHF treatment is a substantial problem in Soweto. Our data confirm the need for a dedicated CHF management programme to optimise CHF-related outcomes in a low-resource environment.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cardiovascular Agents / therapeutic use*
  • Female
  • Heart Failure / drug therapy*
  • Heart Failure / epidemiology
  • Humans
  • Male
  • Medication Adherence / statistics & numerical data*
  • Middle Aged
  • Patient Education as Topic / statistics & numerical data*
  • Prevalence
  • Self Care / psychology*
  • South Africa / epidemiology
  • Surveys and Questionnaires

Substances

  • Cardiovascular Agents