Table 1.

Patient characteristics

	Pre-intervention	Post-intervention
N	509	492
No of men	292	300
Age (years)	77.9±11.2	78.6±12.4
Weight (kg)	73.9±17.8	72.7±19.9
Length of stay (median, range)	7 (1–154)	7 (1–84)
Co-morbidities (median, range)	3 (0–12)	3 (0–9)
Renal function at admission* (ml/min)	47.4+24.1	43.3+22.7
ARF (n)	24	16
ACEI (n)	258	252
Allopurinol (n)	50	54
Digoxin (n)	98	80
Enoxaparin (n)	44	58
Furosemide (n)*	204	233
Gentamicin (n)*	77	38
Lithium (n)	1	1
Metformin (n)	64	60
Vancomycin (n)*	37	17

Mean (±1 SD) unless otherwise stated.

^*p<0.05 for difference between pre and post-intervention period.

ACEI, angiotensin-converting enzyme inhibitor; ARF, acute renal failure.