TY - JOUR
T1 - Incidence of TB and HIV in prospectively followed household contacts of TB index patients in South Africa
AU - Van Schalkwyk, Cari
AU - Variava, Ebrahim
AU - Shapiro, Adrienne E.
AU - Rakgokong, Modiehi
AU - Masonoke, Katlego
AU - Lebina, Limakatso
AU - Welte, Alex
AU - Martinson, Neil
PY - 2014/4/23
Y1 - 2014/4/23
N2 - Objective: To report the incidence rates of TB and HIV in household contacts of index patients diagnosed with TB. Design: A prospective cohort study in the Matlosana sub-district of North West Province, South Africa. Methods: Contacts of index TB patients received TB and HIV testing after counseling at their first household visit and were then followed up a year later, in 2010. TB or HIV diagnoses that occurred during the period were determined. Results: For 2,377 household contacts, the overall observed TB incidence rate was 1.3 per 100 person years (95% CI 0.9-1.9/100py) and TB incidence for individuals who were HIV-infected and HIV seronegative at baseline was 5.4/100py (95% CI 2.9-9.0/100py) and 0.7/100py (95% CI 0.3-1.4/100py), respectively. The overall HIV incidence rate was 2.2/100py (95% CI 1.3-8.4/100py). Conclusions: In the year following a household case finding visit when household contacts were tested for TB and HIV, the incidence rate of both active TB and HIV infection was found to be extremely high. Clearly, implementing proven strategies to prevent HIV acquisition and preventing TB transmission and progression to disease remains a priority in settings such as South Africa.
AB - Objective: To report the incidence rates of TB and HIV in household contacts of index patients diagnosed with TB. Design: A prospective cohort study in the Matlosana sub-district of North West Province, South Africa. Methods: Contacts of index TB patients received TB and HIV testing after counseling at their first household visit and were then followed up a year later, in 2010. TB or HIV diagnoses that occurred during the period were determined. Results: For 2,377 household contacts, the overall observed TB incidence rate was 1.3 per 100 person years (95% CI 0.9-1.9/100py) and TB incidence for individuals who were HIV-infected and HIV seronegative at baseline was 5.4/100py (95% CI 2.9-9.0/100py) and 0.7/100py (95% CI 0.3-1.4/100py), respectively. The overall HIV incidence rate was 2.2/100py (95% CI 1.3-8.4/100py). Conclusions: In the year following a household case finding visit when household contacts were tested for TB and HIV, the incidence rate of both active TB and HIV infection was found to be extremely high. Clearly, implementing proven strategies to prevent HIV acquisition and preventing TB transmission and progression to disease remains a priority in settings such as South Africa.
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U2 - 10.1371/journal.pone.0095372
DO - 10.1371/journal.pone.0095372
M3 - Article
C2 - 24759741
AN - SCOPUS:84899762717
SN - 1932-6203
VL - 9
JO - PLoS One
JF - PLoS One
IS - 4
M1 - e95372
ER -