Table 1.

Characteristics of prescribing of angiotensin converting enzyme inhibitors and monitoring of renal function by general practitioners in North Wales

Characteristic	No of general practitioners (n=277)
Indications for treatment:
Hypertension	277
Cardiac failure	271
Diabetic nephropathy	166
Practitioners who usually monitored renal function:
Before start of treatment	235
After start of treatment	93
At no stage of treatment	42
Practitioners who would welcome guidelines for monitoring renal function	234