Knowledge and adherence to isoniazid preventive therapy among people living with HIV in multilevel health facilities in South-East, Nigeria: baseline findings from a quasi-experimental study

Introduction: isoniazid preventive therapy is a crucial component of TB/HIV collaborative program and patient good knowledge and adherence to this preventive treatment are essential in improving implementation. The aim of this study was to determine the knowledge and adherence to isoniazid preventive therapy among patients receiving HIV care. Methods: this is a baseline result of a quasi-experimental study which was carried out among 200 patients receiving HIV care in six high patient load health facilities providing comprehensive HIV care in Ebonyi State. This included a tertiary health facility and five secondary level health facilities. We used structured interviewer-administered questionnaire to collect information from the participants. Adherence was assessed by self-reports. Descriptive, bivariate and multivariate logistic regression analyses were conducted using SPSS version 20 at 5% level of significance. Results: majority (65%) of the respondents were between 30 and 49 years and most (73.5%) were females. Majority (85%) had been on antiretroviral therapy (ART) for more than one year. More than half of the respondents had ever received and had been counselled on IPT (55%, 62% respectively) while only 17.5% were on IPT during the study. More than half (60.5%) of the respondents had low level of knowledge. Marital status was the only predictor of knowledge. Unmarried respondents were 2 times more likely to have knowledge of IPT compared with the married (AOR = 2.11, CI = 1.10-4.06). Among the 35 patients who were on IPT, 32 (91%) reported good adherence in the 30 days preceding the survey. Conclusion: there was poor knowledge of IPT among the respondents however self-reported adherence was high. We recommend intensification of general and personalized education of PLHIV on IPT by health workers.