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Table 1 Comparison of projected and reported mumps cases in 2020

From: Estimating the impact of non-pharmaceutical interventions against COVID-19 on mumps incidence in Sichuan, China

Month Projected cases Reported cases Percent change (%) (95%CI)a
January 1456 927 − 36.3 (− 33.9 to − 38.8)
February 763 501 − 34.3 (− 31.1 to − 37.8)
March 1088 338 − 68.9 (− 66.1 to − 71.6)
April 1755 422 − 76.0 (− 73.9 to − 77.9)
May 2106 695 − 67.0 (− 65.0 to − 69.0)
June 2332 942 − 59.6 (− 57.6 to − 61.6)
July 1839 716 − 61.1 (− 58.8 to − 63.3)
August 1166 592 − 49.2 (− 46.4 to − 52.1)
September 1264 956 − 24.4 (− 22.1 to − 26.8)
October 1253 877 − 30.0 (− 27.5 to − 32.6)
November 1479 856 − 42.1 (− 39.6 to − 44.7)
December 1705 622 − 63.5 (− 61.2 to − 65.8)
Total 18,206 8444 − 53.6 (− 52.9 to − 54.3)
  1. CI: confidence interval
  2. a95%CI calculated using the Wilson method