Healthcare workers' knowledge and practice of the South African national tuberculosis management guidelines

Tuberculosis (TB) remains a global public health concern. The 2014 South African (SA) national TB management guidelines were developed to decrease the burden of TB, but implementation remains a challenge.

To estimate healthcare workers' level of knowledge about the national TB management guidelines and to assess the implementation of these guidelines.

A cross-sectional descriptive study was conducted in four randomly selected health facilities in Dr Kenneth Kaunda district, North West Province, SA. We administered a TB knowledge questionnaire and reviewed TB registers and 204 patient files.

A total of 38 participants completed the TB knowledge questionnaire. The majority were professional nurses (89%). The participants' mean (standard deviation) age was 46 (8) years, and the median (interquartile range) career length was 10 (8 - 17) years. Inadequate knowledge of the national TB management guidelines was revealed in 12 participants (32%). The review of the TB register showed that 163 153 patients were screened for TB. Of these, 9 308 (6%) had presumptive TB, 8 116 (87%) had an Xpert test and 1 292 (16%) had positive Xpert results. Overall, 1 150 (12%) of the patients with presumptive TB were diagnosed with drug-sensitive TB and started treatment based on laboratory results and a clinical diagnosis. Of this sample, 999 patients (87%) were treated successfully. The patient file review showed that a total of 197 patients (97%) received the correct treatment dose according to body weight and treatment phase. Smear microscopy was consistently done throughout the intensive and continuation phases of TB treatment. Body weight was monitored in 199 patients (98%). Contact investigation was conducted for 133 patients (65%), and there was evidence that child contacts aged <5 years were started on isoniazid preventive therapy. Only 110 patients (54%) had documented HIV status. Of these, 66 (60%) were HIV positive, and 39 (59%) of them received antiretroviral therapy. Body mass index was monitored in 55 patients (27%). Eighty (39%) of the patients with TB were women of childbearing potential, and only 8 (10%) of them had their pregnancy test results recorded. Treatment side-effects were reported in 17 patient files (8%); 13 (76%) were managed and 8 (62%) had resolved side-effects.

Most participants had adequate knowledge of the national TB management guidelines. A high TB treatment success rate was noted, along with some good practices. The study also highlights several knowledge and practice gaps that can be overcome by measures such as quality audits to improve record keeping. Adequate training of healthcare workers, sustaining and updating knowledge through continuous training, and strengthened supervision mechanisms to ensure compliance with the guidelines are recommended.