To assess the efficacy of screening and compare the incidence of Latent Tuberculosis (LTB) and clinical Tuberculosis in two different population groups.
We evaluated the screening data of two different groups in the country’s biggest Hospital. The normal population comprised the employees joining the Hospital, while the high risk group comprised of patients suffering from HIV. The cases with positive Mantoux had been offered CXR and once found clear of TB were labelled as LTB.
The mean age of healthy group was 38 and HIV 51 years. 1948 were men in the healthy and 207 in HIV group. The number of native Irish in these groups was 2001 and 99, while that of Non Irish was 409 and 232. The number of Non Irish patients in HIV was 232(65.9%) from Sub Sahara, 33(9.3%) from Europe, 4(1.1%) from USA and 1(0.28%) from Asia. The number of individual having LTB (positive Montoux test and normal CXR) was 765(31.7%) in normal and 39(11.07) in HIV group.
The data in our study indicates that a significant proportion of normal healthy population and HIV group had Latent Tuberculosis (LTB). While the incidence of LTB was higher in the normal healthy population, the incidence of clinical TB was higher in HIV group.
This study strongly highlights the significance and need of screening for Tuberculosis.
S. Ali, None.