This study examined 15 different leaflets routinely given to elderly p
atients in the diabetes unit of a teaching hospital. It used (1) a Fog
Index to give a rough guide of readability, and(2) examined the size
and style of print. Results were compared with those of information le
aflets taken from the hospitals' acute elderly care unit, rehabilitati
on unit, physiotherapy department, day hospital and outpatients depart
ment. Seven out of a total 70 leaflets (10 %) were as hard to read as
the British Medical Journal. None of these came from the diabetes unit
, which may be because the diabetes leaflets were prepared by educator
s with considerable experience in communicating with patients. However
, the authors' awareness of the need to use simple language was greate
r than their awareness of the need to use legible type. Eleven of the
15 leaflets from the diabetes unit (73 %) failed to meet guidelines su
ggested by the Royal National Institute for the Blind, a rate which di
ffered little from the overall rate (77 %). These findings suggest tha
t those responsible for producing patient information should be more a
ware of the principles of effective written communication.