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Table 1 Characteristics of asymptomatic and symptomatic P. vivax infections

From: Molecular surveillance for drug resistance markers in Plasmodium vivax isolates from symptomatic and asymptomatic infections at the China–Myanmar border

Characteristics

Asymptomatic

Symptomatic

Number (% male)

81 (53.1)

60 (48.3)

Age [median (IQR)]a

14 (11–17)

23 (18–33)***

Fever on day 0 [N (%)]b

0

31 (51.7)

Days with fever [N (%)]

  

 1

0

26 (43.3)

 2

0

26 (43.3)

 ≥ 3

0

8 (13.4)

Parasites density (parasites/µL) [mean (range)]c

339 (16–1648)

1485 (64–10,064)***

  1. IQR interquartile range
  2. *** Indicates P < 0.001
  3. aMann–Whitney U test
  4. bFever is defined as axillary temperature ≥ 37.5 °C
  5. cStudent’s t test