ABSTRACT
The routine tuberculosis (TB) surveillance system in Cambodia has been strengthened under the National TB Programme (NTP). This paper provides an overview of the TB surveillance data for Cambodia at the national level for the period 2000 to 2013 and at the subnational level for 2013. The proportion of the total population that were screened for TB rose from 0.4% in 2001 to 1.1% in 2013, while the smear-positivity rate decreased from 28.9% to 8.1% in the same period. The total number of notified TB cases increased steadily from 2000; this has stabilized in recent years with 39 055 cases notified in 2013. The proportion of all TB cases that were smear-positive decreased from 78% in 2000 to 36% in 2013. Case notification rates (CNRs) for all forms of TB and new smear-positive TB in 2013 were 261 and 94 per 100 000 population, respectively. Higher CNRs were found in the north-west and south-east parts of the country and were higher for males especially in older age groups. The increase in TB screening, decline in the smear-positive rate and decline in notified smear-positive TB cases likely reflect a long-term positive impact of the NTP. A negative correlation between the proportion of the population screened and the smear-positivity rate at the subnational level helped identify where to find undiagnosed cases. Subnational differences in case notification of the elderly and in children provide more specific targets for case-finding and further encourage strategic resource allocation.
ABSTRACT
<B>Background</B><br>The national tuberculosis (TB) control program established Phnom Penh as a pilot area for TB and human immunodeficiency virus (HIV) infection collaborative activities because of the high prevalence of HIV among patients with TB.<br><B>Process</B><br>In 2005, we provided transportation fees so that patients could travel to an operational district referral hospital for HIV counseling and testing by dispatched counselors. However, only around 10.3 patients with TB (range 0-21) per month in all 4 operational districts made use of this service. In 2006, we modified the program by providing HIV counseling and testing by four trained TB/HIV coordinators in TB wards. Thereafter, in-depth, individual, semi-structured interviews were conducted with the TB staff (not the coordinators) of 18 health facilities from April through November 2006 to identify problems in the current TB/HIV collaborative activities in Phnom Penh and to investigate ways for further improving the program.<br><B>Results</B><br>TB staff members encouraged their patients to undergo an HIV test under directly observed treatment, short course. Some TB staff lacked confidence to discuss HIV issues because they lacked sufficient HIV/ acquired immunodeficiency disease syndrome (AIDS) knowledge. Furthermore, there was no formal referral structure between TB and HIV services or sharing of information on the treatment of patients co-infected with TB/HIV with the antiretroviral treatment clinic.<br><B>Conclusions</B><br>We started the program to enable TB patients to receive HIV counseling and testing at the same venue as they received TB treatment. However, problems such as low confidence among TB staff in discussing HIV/AIDS and weak collaboration between TB and HIV services were identified. We found that training of TB staff, development of Information, Education and Communication (IEC) materials, regular meetings among stakeholders, and encouragement for the TB/HIV coordinators to supervise all TB/HIV activities in their operational districts were needed to improve the program.