Baseline characteristics and prevalence of malaria infection, anaemia and malaria antibodies by school.

<p>IRS*: Indoor residual spray (data from 4117 respondents) Hb Haemoglobin.</p><p>§ Haemoglobin <11 g/dl SD Standard deviation.</p><p># Data available for 3640 children.</p><p>Baseline characteristics and prevalence of malaria infection, anaemia and malaria antibodies by school.</p

Crude and adjusted estimates for the odds of being positive for antimalarial antibodies.

<p>*Adjusted odds ratios are derived from a logistic regression model including all variables.</p><p>Crude and adjusted estimates for the odds of being positive for antimalarial antibodies.</p

Slide positivity and seroprevalence rates for sampled schools.

<p>Circles represent schools location and colour graded according to the inset showing the prevalence of individuals with a positive blood slide for P. falciparum (A) and positive for antibodies to MSP1₁₉ (B).</p

Geographical locations of primary schools sampled in the survey.

<p>Circles represent the GPS location of the school.</p

Two-component model distribution of antibody titres (yellow bars: 2 and 3 SD).

<p>Two-component model distribution of antibody titres (yellow bars: 2 and 3 SD).</p

Frequency distribution of tuberculin induration sizes (mm) by residence in school children with a BCG scar present.

<p>10,679 of 13, 386 children, 79.8% had 0 mm induration and are not shown.</p

Frequency distribution of smoothed tuberculin induration sizes (mm).

<p>Frequency distribution of smoothed tuberculin induration sizes (mm).</p

Prevalence of latent tuberculosis and annual risk of <i>M</i>. <i>tuberculosis</i> infection in Gambian schoolchildren aged 6–11 years using a 12mm cut-off point.

<p>95% Confidence Interval (95%CI)</p><p>^a Denominator, N does not include non-reactive TST</p><p>^b Adjusted for all other terms in the model</p><p>Prevalence of latent tuberculosis and annual risk of <i>M</i>. <i>tuberculosis</i> infection in Gambian schoolchildren aged 6–11 years using a 12mm cut-off point.</p

Frequency distribution of tuberculin induration sizes (mm) among Gambian School Children aged 6–11 years.

<p>Frequency distribution of tuberculin induration sizes (mm) among Gambian School Children aged 6–11 years.</p

Study Flow Diagram.

<p>Study Flow Diagram.</p