	Region (by Federal District)
	Central	Privolzhskiy	Sibirskiy/Ural	Northwest	Overall
Number of physicians in study sample	56	12	5	30	.
Number of patients reported on two-week daily log	8127	2102	719	5013	15 961
Mean number of patients reported in two-week daily log	145.1	175.2	143.8	167.1	.
Patient distribution in two-week daily log	0.5092	0.1317	0.0450	0.3141	1.0000
Observed GW cases	719	134	72	444	1369
Sample prevalence (%)	8.8471	6.3749	10.0139	8.8570	8.5772
Number of physicians at national level^a	9150	9150	9150	9150	.
Number of patients at national level	1 327 894	1 602 775	1 315 770	1 528 965	.
Patient distribution at national level	0.2299	0.2775	0.2278	0.2647	.
Estimated prevalence (%)^b	8.8471	6.3749	10.0139	8.8570	8.4294
Standard error^b	0.3150	0.5329	1.1195	0.4013	0.6409
95% Confidence interval^b	(8.2296, 9.4645)	(5.3305, 7.4193)	(7.8197, 12.2081)	(8.0704, 9.6435)	(7.1733, 9.6856)