Author: Stanley Xu; Christina Clarke; Susan Shetterly; Komal Narwaney
Title: Estimating the Growth Rate and Doubling Time for Short-Term Prediction and Monitoring Trend During the COVID-19 Pandemic with a SAS Macro Document date: 2020_4_11
ID: 10mbsqmo_9
Snippet: The doubling time (growth rate>0) and half time (growth rate<0) in days over time are displayed in Figure 2 . Before April 1 st , the y-axis represents the doubling time in days because of positive growth rates. After April 1 st , except for a positive growth rate on April 9 th , the y-axis represents a half-time because of negative growth rates. On April 1 st , the reduction rate was very small (0.5%) which resulted in a high half-time, 128 days.....
Document: The doubling time (growth rate>0) and half time (growth rate<0) in days over time are displayed in Figure 2 . Before April 1 st , the y-axis represents the doubling time in days because of positive growth rates. After April 1 st , except for a positive growth rate on April 9 th , the y-axis represents a half-time because of negative growth rates. On April 1 st , the reduction rate was very small (0.5%) which resulted in a high half-time, 128 days with very wide 95% CIs (not shown in the figure). On April 8 th , there was a small reduction rate (1.2%) resulting in 55 days of half time.
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