Gunaid, A.A. 2002 The present study was undertaken to determine the prevalence of known cases of diabetes and hypertension among adults in Sana'a city. Thus 1080 persons aged 20 85 years were selected for interview using a multistage random sampling technique. The crude prevalence of known diabetes was 6.57 95 CI: 5.2 8.2 and of known hypertension 13.5 95 CI: 11.5 15.6 . The age standardized prevalence for the age range 30 64 years was 9.75 95 CI: 7.55 11.95 for diabetes and 17.1 95 CI: 15.0 19.2 for hypertension. These results provide an estimate ...