An external pilot cluster randomised controlled trial of a theory-based intervention to improve appropriate polypharmacy in older people in primary care (PolyPrime)

Table 1 GP practices’ baseline characteristics

	Intervention n = 5 GPPs	Control n = 5 GPPs
Number of GP practices
NI n (%)	2 (40.0%)	3 (60.0%)
ROI n (%)	3 (60.0%)	2 (40.0%)
Number of GPs within GP practices
Overall mean (SD)	4.0 (2.8)	4.4 (2.07)
NI mean (SD)	7.0 (0.0)	5.3 (1.2)
ROI mean (SD)	2.0 (1.0)	3.0 (2.8)
Number of other staff members per practice^a
Overall mean (SD)	11.8 (6.7)	10.6 (5.7)
GPP missing n (%)	1 (20.0)	0 (0.0)
Patient list size
Overall mean (SD)	5168.4 (5005.6)	5738.4 (3259.9)
NI mean (SD)	10496.0 (377.6)	6714.0 (2440.0)
ROI mean (SD)	1616.7 (1654.0)	4275.0 (4843.7)
Total years practising for all GPs^b
Overall mean (SD)	15.3 (10.3)	31.20 (5.8)
GPP missing n (%)	1 (20.0)	0 (0.0)
Number of GP practices using medication reviews
Overall n (%)
Yes n (%)	2 (40.0)	4 (80.0)
No n (%)	2 (40.0)	0 (0.0)
GPP missing n (%)	1 (20.0)	1 (20.0)

GPP general practitioner practice. Missing represents the number of GP practices where data were not available
^aIncludes both part-time and full-time staff who are either administrative and support staff, nurses, pharmacists or other. ^bBased on those GPs who were involved in the study (i.e. 11 GPs; one control practice had two participating GPs)

ISSN: 2055-5784