Box 1: Standardized telephone questionnaire questions conducted within six weeks of Ramadan.

Did you have symptoms of hypoglycemia?

If yes, did you check your blood sugar?

If yes, did this confirm the hypoglycemia?

What time did you develop hypoglycemia?

If it was during fasting, did you break your fast?

Did you change your insulin or oral hypoglycemic agent dose during Ramadan?

Did you have symptoms of severe dehydration (extreme and unusual thirst)?

Have you ever been admitted due to high or low blood sugar level or extreme dehydration?

How many days did you fast during Ramadan?