A study of 1000 patients attending a diabetes referral centre in Amman, Jordan, identified factors associated with good glycaemic control, as measured by glycosylated haemoglobin [‎HbA1c]‎ levels. Glycaemic control improved significantly between the first clinic visit and at 12-months follow-up. The proportion of patients with extreme HbA1c [‎>/= 10%]‎ decreased from 15.3% to 6.0% after 12 months. The percentage of patients with optimal control [‎HbA1c < 7%]‎ increased from 25.4% at the first visit to 27.5% at 12-month follow-up. Multivariate regression showed that low body mass index, shorter duration of diabetes and higher baseline HbA1c were related to reductions in HbA1c between the first and 12-month visits