Increased bacterial binding to respiratory epithelial cells in vitamin A deficiency.

patients presented with dyspepsia compared with 13 (65%) of the 20 patients in the same age group who had not taken the drugs (p<0-001, x2 test). The patients who had taken the drugs therefore constituted 81% (30/37) of those without dyspepsia. In the group aged 65-74 who had taken non-steroidal anti-inflammatory drugs the numbers with and without dyspepsia were similar. Overall, most of the patients who had taken the drugs presented with either bleeding or iron deficiency anaemia.