Table 2.

Difference between intervention homes and control homes for change in number of prescription claims items/year/1000 residents for individual drug categories.

	Change in number of prescription items/year/1000 residents (trial period – baseline period⋆)
Drug category	Intervention	Control	Intervention-Control	P value#
Antacids	−228	−146	−82	0.038
H2 antagonists	−267	18	−285	0.012
Laxatives	108	559	−451	0.008
Digoxin	−96	−84	−12	0.331
Diuretics	−486	−131	−355	0.494
Antibacterials	−824	−196	−628	0.014
NSAIDs	−489	−250	−239	0.036
Paracetamol	360	820	−460	0.069
Psycholeptics	−4447	−2792	−1655	0.059
Benzodiazepines†	−597	278	−875	0.024

^⋆Trial period – April to March; Baseline period – preceding 12 months.

^†ATC category for benzodiazepine hypnotics.

^#t-test.