Background: Maternal health is a public health priority in many African countries, but little is known about herbal medicine use in pregnancy. This study aimed to determine the pattern of use of herbal medicine in an urban setting, where women have relatively high access to public healthcare. Methods: This cross-sectional study included 333 women attending a childcare clinic in a district public health hospital in Nairobi, Kenya, during January and February, 2012, and who had delivered a baby within the past 9 months. Qualitative and quantitative data on herbal medicine use during their latest pregnancy were collected through an interviewer-administered questionnaire. Data was analysed descriptively and the Chi square test and Fishers’ exact test used to analyse relationships among variables. Results: About 12% of women used herbal medicine during their most recent pregnancy. The use of herbal medicine was associated with a lower level of education (p = 0.007) and use before the index pregnancy (p < 0.001). Only 12.5% of users disclosed such use to healthcare professionals, and about 20% used herbal medicine concomitantly with Western medicine for the same illness/condition. Women used herbal medicine for back pain, toothache, indigestion and infectious diseases, such as respiratory tract infections and malaria. A proportion of users took herbal medicine only to boost or maintain health. There were high rates of self-prescribing, as well as sourcing from family and friends. Beliefs about safety and efficacy were consistent with patterns of use or non-use, although both users and non-users were unsure about the safety and contraindications of Western medicine during pregnancy compared with that of herbal medicine. Conclusion: Herbal medicine is used by 12% of pregnant women with access to healthcare in an urban context in Kenya, and often occurs without the knowledge of healthcare practitioners. Healthcare professionals should play a role in rational use of both herbal and Western medicine, by discussing contraindications and the potential for drug-herb interactions with patients. More studies are needed into the use of herbal medicines during pregnancy, labour and the postpartum period in different geographical areas, and into the health outcomes associated with their use.
Women attending a childcare clinic at Mbagathi District Hospital in Nairobi, with infants no more than 9 months old, were invited by healthcare professionals to take part in the study. Mbagathi District Hospital was the only fully operational public healthcare facility in the Nairobi area mandated to provide an Integrated Management of Childcare and Illness clinic at the time of study (according to the Ministry of Health online registry of health facilities in Kenya). All the respondents were briefed on the definition of herbal medicine by the research assistants and gave signed consent to participate in the study. Only participants above 18 years of age and the biological mothers of infants participated in the study. After informed consent was obtained, data were collected using a semi-structured, interviewer-administered questionnaire to gather qualitative and quantitative information about sociodemographic characteristics, patterns of medicine use, and beliefs about safety and efficacy of medicines. The definition of herbal medicine was included in the questionnaire and given to participants at the beginning of the interview. The WHO estimated that 80% of African patients used herbal medicine, and thus respondents were needed for statistical analysis of data [1]. A more conservative sample size was used because studies have suggested a lower prevalence of herbal medicine in urban areas in Africa, though there is little data on herbal medicine use among urban women. A previous study suggested 40% use among obstetric patients in an urban African context [7]. At a 50% prevalence rate for the use of herbal medicine, the conservative sample size was estimated at 384 respondents. The formula used for determining sample size for this study was n = z2pq/d2, where n = number of respondents, z = value of the test statistic, p = the estimated proportion of use of herbal medicine, q = 1- p and d = degree of accuracy (5%). Of the targeted women, 337 (87%) agreed to take part in the survey. An analysis of non- response could not be performed because data for the non-respondents was not available. However, there was a high rate of inclusion. After excluding incomplete questionnaires, data of 333 women (86% of those targeted) were included in the analysis. Data were collected over 2 months during January and February 2012. Quantitative data are presented as descriptive statistics and were analysed by the Chi-square test at ∝ = 0.05 significance level using SPSS v16 (SPSS Inc., Chicago, IL, USA). Qualitative data were analysed using Microsoft Excel 2010. All the respondents were briefed on the definition of herbal medicine by the research assistants and gave signed consent to participate in the study. Only participants above 18 years of age, biological mothers of infants and who gave full informed consent participated in the study. The definition of herbal medicine was included in the questionnaire and given to participants at the beginning of the interview. Authorization to conduct the study was obtained from Mbagathi District Hospital. The proposal was approved by the Ethics Committee of Moi University Institutional Review Board.
N/A