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Table 1 Characteristics of study cohorts

From: The effect of declining exposure on T cell-mediated immunity to Plasmodium falciparum – an epidemiological “natural experiment”

Variable

Ngerenya

Junju

Total number

44

44

Sex (%)

 Male

26 (59)

18 (41)

 Female

20 (45)

24 (55)

Age (years)

 Mean (95 % CI)

11.09 (10.66–11.51)

11.16 (10.75–11.57)

 Range

7.16–12.94

7.35–12.99

Total no. of previous P. falciparum episodes

 Mean (95 % CI)

2.64 (2.01–3.26)

4.48 (3.35–5.60)

 Range

1–9

1–16

Time since last episode (mo)

 Median (IQR)

105.8 (78.17–112.5)

12.1 (4.2–36.67)

 Range

3.23–143.6

2.03–83.1

P. falciparum infection status at sampling (% positive)

 By blood smear

1 (2.2)

11 (25)

 By PCR

1 (2.2)

15 (34)