My mum died last week in hospital, quite suddenly and unexpectedly. Her death certificate states two causes: Pneumonia and Vascular Dementia...
Three years ago she was diagnosed with "mild mixed dementia" . I don't know how the hospital doctor came to the conclusion he did (he never saw my mum alive) but I would not disagree with this diagnosis. The reason being that my mother had not been able to realise that she was so ill and no-one at the care home realised she had pneumonia until they had to call for an ambulance. She also was not able to properly convey her feelings in hospital either, thus contributing to her premature death.