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Table 1 Demographic characteristics of malaria cases in Shanghai, 2020–2021

From: An epidemiological analysis of imported malaria in Shanghai during a COVID-19 outbreak

Variable
(n = 112)
Categories 2020 2021 Total
No. % No. % No. %
Sex Male 18 100.00 91 96.81 109 97.32
  Female 0 0.00 3 3.19 3 2.68
Age 20–29 3 16.67 17 18.09 20 17.86
  30–39 6 33.33 31 32.98 37 33.04
  40–49 4 22.22 27 28.72 31 27.68
  50–59 4 22.22 18 19.15 22 19.64
  60–69 1 5.56 1 1.06 2 1.79
Occupation Labour personnel 10 55.56 83 88.30 93 83.04
  Business personnel 7 38.89 11 11.70 18 16.07
  Student 1 5.56 0 0.00 1 0.89