Table 2. National campaign: presentations per GP practice per week adjusted for working days excluding bank holidays for patients aged 50+, data from 486 practices.

		Presentations per practice per week (adjusteda)
Symptoms	Eight-week period	2011	2012	Change (2012 vs 2011)	% Change (2012 vs 2011)	P-value
Key campaign symptom (cough)	Control	6.2	6.5	0.3	+5	<0.001
	Campaign	4.8	7.8	3.0	+63	<0.001
	Post-campaign	4.1	5.9	1.9	+46	<0.001
UTI	Control	1.1	1.1	0.0	+2	0.386
	Campaign	1.1	1.2	0.1	+5	0.016
Neck pain	Control	0.8	0.8	0.0	−4	0.142
	Campaign	0.9	0.9	0.0	0	0.963
Shoulder pain	Control	1.9	1.9	0.0	−1	0.604
	Campaign	1.9	1.9	0.0	+1	0.681
Knee pain	Control	2.5	2.5	0.0	+1	0.436
	Campaign	2.8	2.8	0.1	+3	0.060

Control period: 8 weeks from 13th March. Campaign period: 8 weeks from 8th May. Post-campaign period: 8 weeks from 3rd July.

Results in bold indicate a statistically significant change between 2011 and 2012 (likelihood ratio test of two counts; P<0.05).

^aAdjusted for a 5-day working week excluding bank holidays (e.g., excludes Easter, Early May, Spring bank holidays and Queen's Diamond Jubilee bank holiday for 2012).