Table 2. Comparison of weekly changes in log daily fatalities due to COVID-19 between 2,647 counties with stay-at-home orders and 386 counties without orders relative to the same date for each unique stay-at-home date.

		One Week Change in Log Weekly Fatalities
		Counties With Stay-at-Home Order		Counties Without Stay-at-Home Order
Date Stay-at-Home Order Went Into Effect	Number of Counties	On Day of Order	21 Days After Order	On Day of Order	21 Days After Order	21-Day Difference in Change, With Order	21-Day Difference in Change, Without Order	Difference in Difference, Counties With Orders and Without Orders
3/17/20	6	1.10	0.12	-0.69	0.94	-0.98	1.63	-2.62
3/19/20	52	1.20	0.76	-0.69	0.43	-0.45	1.12	-1.57
3/21/20	104	2.56	0.82	-0.69	0.71	-1.74	1.40	-3.14
3/22/20	23	1.85	0.63	0.00	0.40	-1.21	0.40	-1.61
3/23/20	209	1.81	0.33	0.00	0.34	-1.48	0.34	-1.82
3/24/20	258	3.62	0.61	1.61	0.16	-3.01	-1.45	-1.56
3/25/20	308	2.01	0.43	1.61	0.33	-1.59	-1.28	-0.31
3/26/20	77	1.61	0.10	1.79	0.47	-1.51	-1.32	-0.19
3/27/20	136	1.10	-0.14	2.48	0.16	-1.24	-2.32	1.08
3/28/20	174	2.25	0.28	2.71	0.29	-1.98	-2.41	0.44
3/29/20	38	1.50	0.12	2.08	0.26	-1.39	-1.82	0.43
3/30/20	324	0.80	0.34	2.40	0.31	-0.46	-2.09	1.63
3/31/20	31	1.28	0.01	1.61	0.49	-1.27	-1.12	-0.14
4/1/20	126	1.72	0.05	1.89	0.32	-1.67	-1.57	-0.10
4/2/20	274	1.66	0.44	1.92	0.16	-1.22	-1.76	0.54
4/3/20	290	1.12	0.06	1.07	0.34	-1.06	-0.73	-0.33
4/4/20	66	1.86	0.27	0.96	0.18	-1.59	-0.77	-0.81
4/6/20	104	0.77	-0.13	0.92	0.23	-0.90	-0.69	-0.21
4/7/20	44	0.65	0.40	0.94	0.02	-0.26	-0.92	0.67

Although mean rates of change decline for all counties, the rightmost column shows that 1,931 of the 2,647 counties with orders are in groups that decline faster than counties without orders.