Background The MRC/Wits University Agincourt research centre, part of the INDEPTH Network, has documented mortality in a defined population in the rural northeast of South Africa for 20 years (1992-2011) using long-term health and socio-demographic surveillance. Detail on the unfolding, at times unpredicted, mortality pattern has been published. This experience is reviewed here and updated usin...

BACKGROUND Neonatal hepatitis B vaccination program at birth has been implemented nationwide since 1992 in China. However, current HBV prevalence status in blood donors has not been entirely examined, which may impact HBV safety in blood donations as the vaccinees over 18 years old progressively become the majority population of blood donors. METHODS In this study, 569,145 blood donors were s...

in this study, change in the iranian households’ preferences for red vs. poultry meat is investigated over the period of 1974-2006. to this end, a linear programming model is developed as based on sakong and hayes (1992) proposed methodology, while changes in preferences being estimated by in terms of variances in the estimated quantities of per capita consumption of these two commodities durin...

Artisanal and Small-scale river sand mining is one of the upcoming activities associated with environmental crisis concerning water ecosystem. However, determination duration in which illegal has occurred, future prediction on extent not well-established most world. This study aimed to assess across some catchments Limpopo province, South Africa understand sustainable extraction resources. was ...

To estimate the change in AIDS incubation time during three periods characterized by different availability of antiretroviral treatments, data from the French Hospital Database on HIV of 4702 HIV-1-positive subjects with a documented date of infection were analyzed. Times from seroconversion to AIDS were compared in three periods: period 1 from January 1992 to June 1995 (monotherapy); period 2 ...

BACKGROUND The existence of Poison Centers for management and prevention of intoxications has been endorsed by the international experience. In Chile, the Toxicological Information Center at the Pontifical Catholic University of Chile has been active since 1992, receiving about 130,000 calls until 2002. AIM To analyze the statistical data gathered throughout the first ten years of our Researc...