[P3–275]: SYSTOLIC BLOOD PRESSURE AND COGNITIVE IMPAIRMENT IN A TANZANIAN POPULATION: IS HYPERTENSION PROTECTIVE AGAINST DEMENTIA IN THE ELDERLY?. (1st July 2017) - Gray, William K.; Paddick, Stella‐Maria; Collingwood, Cecilia; Dotchin, Catherine; Kisoli, Aloyce; Mbowe, Godfrey; Mkenda, Sarah; Lissu, Carolyn; Rogathi, Jane; Kissima, John; Walker, Richard