TABLE 2.

Total and Percent Change ^* in Visits from Hurricane Harvey in Metropolitan Dallas—Fort Worth, TX on Daily Emergency Department Visits, March 1, 2017–January 6, 2018

	All Excess Visits						Excess Evacuee Vists
	Total Change From Baseline			Percent Change from Baseline			Total Change From Baseline			Percent Change from Baseline
Time Post-Event**	Estimate	95%CI		Estimate	95%CI		Estimate	95%CI		Estimate	95%CI
Immediate Effect	794	587	959	11.2	8.7	12.7	31.7	29.1	40.2	126.9	124.6	128.7
Cumulative Effect at 1 week post event	5,861	4,778	6,583	10.0	8.9	10.9	247.7	210.8	284.6	112.5	112.7	112.2
Cumulative Effect at 2 week post event	10,152	9,093	10,505	9.2	9.1	9.3	412.1	354.4	469.8	99.0	98.2	110.1
Cumulative Effect at Return to Baseline***	16,505	14,379	17,208	8.0	6.8	9.3	653.5	571.5	742.3	15.0	29.3	33.1

^*Estimated using Interrupted Time Series analysis specified as segmented with autoregressive errors.

^**Event = August 25, 2017, the date that Hurricane Harvey made landfall in Texas.

^***All visits returned to baseline by 9/21/2017 and Evacuee visits returned to baseline by 9/29/2017.