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Table 1 Summary statistics on dynamics of the autumn wave* of the 1918 influenza pandemic ( n  = 213 districts)

From: The evolution of pandemic influenza: evidence from India, 1918–19

CATEGORY OF VARIABLE

Variable

Mean and Standard Deviation

SEVERITY OF WAVE

Peak Excess Mortality

4223.00

  

(3083)

 

Standardized Peak Excess Mortality

20.76

  

(10.57)

LENGTH OF WAVE

Mean Time to Mortality (Days)

51.93

  

(35.00)

 

Duration of Wave (Weeks)

17.85

  

(12.74)

TIMING OF WAVE

Peak Date of Wave

Nov. 16, 1918

  

(35.03)

 

Midpoint of Wave

Dec. 03, 1918

  

(56.75)

SHAPE OF WAVE

Variance of Wave

1399.00

  

(3708.00)

 

Wave Symmetry

0.25

  

(0.50)

  1. *The wave is defined as being current when deaths exceed 1σ over the baseline.