The procedure for sample selection involved multi-stages. In the first stage, the South East region was clustered into five states namely: Abia, Anambra, Ebonyi, Enugu and Imo States. In the second stage, three (3) states were selected from the five (5) states, using simple random samplin...
People who ever used methamphetamine were identified from five National Health and Nutrition Examination Survey (NHANES) cohorts, 2007 to 2016. The outcome was either positive or negative for blood-borne viruses as identified from laboratory tests. Weighted statistics for the combined ten years of dat...