Table 2

Differences in users’ demographics for pre–choice of test period vs choice of test period

	Pre–choice of test period		Choice of test period		P value
	n	%	n	%	P value
All	6253		7772
Female	4030	64.4%	4968	63.9%	0.52
16–24	3351	53.6%	4120	53%	0.49
BME	642	10.3%	878	11.3%	0.05
MSM	367	5.9%	530	6.8%	0.02
IMD
Most deprived	580	9.3%	794	10.2%	0.02
2	1364	21.8%	1705	22%
3	1399	22.4%	1847	23.8%
4	1614	25.8%	1886	24.3%
Least deprived	1296	20.7	1528	19.7%

Bold values indicate statistical significance.
BME, black and ethnic minority; IMD, index of multi-deprivation; MSM, men who have sex with men.