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Table 1 Demographic characteristics of passively and actively detected individuals infected with Plasmodium falciparum by malaria transmission season

From: Distinct parasite populations infect individuals identified through passive and active case detection in a region of declining malaria transmission in southern Zambia

 

Overall

2008a

2008–2009

2009–2010

2010–2011

2011–2012

2012–2013

2013–2014

2014–2015

Passively detected cases

 Number

46

–

–

–

–

–

12

25

9

 Age in years (median [IQR])

13 [7–30]

–

–

–

–

–

11 [7–30]

18 [9–32]

11 [7–11]

 Male (%)

64.4

–

–

–

–

–

63.64

60.00

77.78

Actively detected cases

Number

72

15

19

13

12

7

6

 Age in years (median [IQR])

14 [11–21]

14 [9–18]

13 [11–18]

17 [11–20]

14.5 [10.5–24]

25 [13–31]

12.5 [6–47]

 Male (%)

55.6

66.7

52.6

53.9

50.0

57.1

50.0

 Symptomatic (%)

34.7

60.0

15.8

23.1

16.7

57.1

66.7

 Microscopy positive (%)

11.1

35.0

7.1

11.1

0.0

25.0

0.0

 RDT positive (%)

20.8

20.0

31.6

23.1

8.3

14.3

16.7

  1. aThe 2008 season was truncated as active case detection began in February 2008